#10588D#10588D

#10588D is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.7% C 0.109 H 246.9°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#10588D
RGB	rgb(16, 88, 141)
HSL	hsl(205, 80%, 31%)
HSV	hsv(205, 89%, 55%)
CMYK	cmyk(88.7%, 37.6%, 0%, 44.7%)
CIE-LAB	lab(36.01, -0.49, -35.18)
CIE-LCH	lch(36.01, 35.18, 269.20°)
OKLab	oklab(44.72% -0.0428 -0.1004)
OKLCH	oklch(44.72% 0.109 246.9)
XYZ	xyz(8.5093, 9.0116, 26.4851)
Luminance	0.0901 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10588D #8D4510

analogous

#108D83 #10588D #10198D

triadic

#10588D #8D1058 #588D10

tetradic

#10588D #83108D #8D4510 #198D10

square

#10588D #83108D #8D4510 #198D10

split-complementary

#10588D #8D1019 #8D8310

monochromatic

#04131F #0A3656 #10588D #167AC4 #309AE7

Accessibility & contrast

On white

7.49

#10588D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#10588D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10588D

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10588D	#FFFFFF	#000000	##FFFFFF
##10588D	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B8F

Deuteranopia (green-blind)

#2C508C

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #10588d;
/* rgb */ color: rgb(16, 88, 141);
/* oklch */ color: oklch(44.7% 0.109 246.9);

Tailwind

colors: {
  custom: {
    50: '#6886ae',
    500: '#10588d',
    950: '#000000',
  },
}

SCSS

$custom: #10588d;
$custom-light: #6886ae;
$custom-dark: #000000;

JSON

{
  "hex": "#10588d",
  "rgb": {
    "r": 16,
    "g": 88,
    "b": 141
  },
  "hsl": {
    "h": 205.44,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44716,
    "c": 0.10914,
    "h": 246.9
  },
  "luminance": 0.09013
}

Semantic roles & 50–950 ramp

primary

#10588D

secondary

#C27237

accent

#8532F6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #10588D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →