607D8B (Blue Grey 500) — RGB, HSL, CMYK and Contrast

Q: What text colour should sit on 607D8B?

Black gives 4.80:1 and white gives 4.37:1, so black wins at 4.80:1. That clears the 4.5:1 AA threshold for normal text, but not the 7:1 AAA threshold.

Every value recomputed from the hex code · WCAG 2.1 contrast ratios

A teal at 46% lightness and 18% saturation, which puts it at 4.37:1 against white and 4.80:1 against black. The tables below give the notation conversions, the tints and shades that keep the hue intact, and the harmonies that pair with it.

607D8B

Notation conversions

Notation	Value
HEX	`607D8B`
RGB	rgb(96, 125, 139)
HSL	hsl(200, 18%, 46%)
CMYK	cmyk(31%, 10%, 0%, 45%)
Relative luminance	0.1902
Perceived brightness	46.2 / 100

R=96 G=125 B=139 · hue 199.5° · saturation 18.3% · lightness 46.1%

Contrast against pure white and pure black

Pair this colour with the two extremes to see which is the safer text partner. AA needs 4.5:1 for body text and 3:1 for large text; AAA raises that to 7:1 and 4.5:1.

Against	Hex	Ratio	AA text	AA large	AAA text
#FFFFFF	`white`	4.37:1	fail	pass	fail
#000000	`black`	4.80:1	pass	pass	fail

Tints and shades

Lightness moves in ten-point steps while hue and saturation stay fixed, which keeps the colour recognisable in a scale. The last column is the ratio against white text, useful for deciding where a scale stops working as a background.

Step	Hex	HSL	vs white text
shade -30	`#212c31`	hsl(200, 18%, 16%)	14.29:1
shade -20	`#36474f`	hsl(200, 18%, 26%)	9.67:1
shade -10	`#4b626d`	hsl(200, 18%, 36%)	6.43:1
tint +10	`#7b96a3`	hsl(200, 18%, 56%)	3.12:1
tint +20	`#99aeb8`	hsl(200, 18%, 66%)	2.31:1
tint +30	`#b7c6cd`	hsl(200, 18%, 76%)	1.75:1

Harmonies

Scheme	Hex
Complementary	`#8b6e60`
Analogous −30	`#608b84`
Analogous +30	`#60688b`
Triadic −120	`#7d8b60`
Triadic +120	`#8b607d`

Take the channels apart and the numbers hold together: 96, 125 and 139 average 120, the strongest channel is 139 and the weakest 96, and that span is what pushes saturation to 18.3% at hue 199.5° and lightness 46.1%. Luminance 0.1902 with perceived brightness 46.2 out of 100 is why the white ratio (4.37:1) and the black ratio (4.80:1) diverge by 0.43. Entry 31 of 69, it steps to #212c31 at minus thirty and #b7c6cd at plus thirty.

Nearby colours

008080 teal 009688 Teal 500 00BCD4 Cyan 500 03A9F4 Light Blue 500 00FFFF aqua 40E0D0 turquoise

Frequently asked questions

What text colour should sit on 607D8B?
Black gives 4.80:1 and white gives 4.37:1, so black wins at 4.80:1. That clears the 4.5:1 AA threshold for normal text, but not the 7:1 AAA threshold.

Do the CMYK numbers match a print workflow?
They are the naive conversion from RGB, which assumes no ink limit, no colour profile and no black generation strategy. Real print work needs a profile-aware conversion; the values here are the ones the converter reports and are best used as a starting point for a designer rather than a press-ready separations file.

Convert any other colour, or test a pair against each other, in the ColrShift colour converter and contrast checker. The colour library groups every entry on this site by hue family.