#102558#102558

#102558 is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.2% C 0.096 H 264.2°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#102558
RGB	rgb(16, 37, 88)
HSL	hsl(223, 69%, 20%)
HSV	hsv(223, 82%, 35%)
CMYK	cmyk(81.8%, 58%, 0%, 65.5%)
CIE-LAB	lab(16.19, 12.58, -33.21)
CIE-LCH	lch(16.19, 35.52, 290.75°)
OKLab	oklab(28.2% -0.0097 -0.0957)
OKLCH	oklch(28.2% 0.096 264.2)
XYZ	xyz(2.6361, 2.1376, 9.5043)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102558 #584310

analogous

#104958 #102558 #1F1058

triadic

#102558 #581025 #255810

tetradic

#102558 #581049 #584310 #10581F

square

#102558 #581049 #584310 #10581F

split-complementary

#102558 #581F10 #495810

monochromatic

#050B1A #070F24 #102558 #193B8C #2351C0

Accessibility & contrast

On white

14.71

#102558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#102558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102558

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102558	#FFFFFF	#000000	##FFFFFF
##102558	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#012C5A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#00313A

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #102558;
/* rgb */ color: rgb(16, 37, 88);
/* oklch */ color: oklch(28.2% 0.096 264.2);

Tailwind

colors: {
  custom: {
    50: '#5b5f88',
    500: '#102558',
    950: '#000000',
  },
}

SCSS

$custom: #102558;
$custom-light: #5b5f88;
$custom-dark: #000000;

JSON

{
  "hex": "#102558",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 88
  },
  "hsl": {
    "h": 222.5,
    "s": 69.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.28201,
    "c": 0.09618,
    "h": 264.2
  },
  "luminance": 0.02138
}

Semantic roles & 50–950 ramp

primary

#102558

secondary

#917632

accent

#B93CEC

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04040B

muted

#79797C

Preview Lab

Preview with #102558

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

Preview Lab → · Contrast checker → · Palette generator →