#102B57#102B57

#102B57 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.6% C 0.086 H 259.7°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#102B57
RGB	rgb(16, 43, 87)
HSL	hsl(217, 69%, 20%)
HSV	hsv(217, 82%, 34%)
CMYK	cmyk(81.6%, 50.6%, 0%, 65.9%)
CIE-LAB	lab(18.03, 7.67, -29.57)
CIE-LCH	lch(18.03, 30.55, 284.54°)
OKLab	oklab(29.58% -0.0153 -0.0848)
OKLCH	oklch(29.58% 0.086 259.7)
XYZ	xyz(2.7972, 2.5257, 9.3551)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B57 #573C10

analogous

#104E57 #102B57 #181057

triadic

#102B57 #57102B #2B5710

tetradic

#102B57 #57104E #573C10 #105718

square

#102B57 #57104E #573C10 #105718

split-complementary

#102B57 #571810 #4E5710

monochromatic

#050D1A #061123 #102B57 #1A458B #235EBE

Accessibility & contrast

On white

13.95

#102B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#102B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B57

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B57	#FFFFFF	#000000	##FFFFFF
##102B57	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133059

Deuteranopia (green-blind)

#032956

Tritanopia (blue-blind)

#00353C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102b57;
/* rgb */ color: rgb(16, 43, 87);
/* oklch */ color: oklch(29.6% 0.086 259.7);

Tailwind

colors: {
  custom: {
    50: '#5a6387',
    500: '#102b57',
    950: '#000000',
  },
}

SCSS

$custom: #102b57;
$custom-light: #5a6387;
$custom-dark: #000000;

JSON

{
  "hex": "#102b57",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 87
  },
  "hsl": {
    "h": 217.183,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.29582,
    "c": 0.08623,
    "h": 259.7
  },
  "luminance": 0.02526
}

Semantic roles & 50–950 ramp

primary

#102B57

secondary

#906D32

accent

#A93CEC

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #102B57

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

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