#102583#102583

#102583 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.158 H 266.4°. Best body text is #FFFFFF at 13.01:1 contrast (WCAG AA passes).

Color values

HEX	#102583
RGB	rgb(16, 37, 131)
HSL	hsl(229, 78%, 29%)
HSV	hsv(229, 88%, 51%)
CMYK	cmyk(87.8%, 71.8%, 0%, 48.6%)
CIE-LAB	lab(20.33, 30.39, -54.37)
CIE-LCH	lch(20.33, 62.29, 299.21°)
OKLab	oklab(32.53% -0.0098 -0.1576)
OKLCH	oklch(32.53% 0.158 266.4)
XYZ	xyz(4.9706, 3.0714, 21.7992)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102583 #836E10

analogous

#105F83 #102583 #351083

triadic

#102583 #831025 #258310

tetradic

#102583 #83105F #836E10 #108335

square

#102583 #83105F #836E10 #108335

split-complementary

#102583 #833510 #5F8310

monochromatic

#03081B #09164C #102583 #1734BA #294BE5

Accessibility & contrast

On white

13.01

#102583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#102583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102583

13.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102583	#FFFFFF	#000000	##FFFFFF
##102583	1.00	13.01	1.61	13.01
#FFFFFF	13.01	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003786

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#003F51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #102583;
/* rgb */ color: rgb(16, 37, 131);
/* oklch */ color: oklch(32.5% 0.158 266.4);

Tailwind

colors: {
  custom: {
    50: '#675fa8',
    500: '#102583',
    950: '#000000',
  },
}

SCSS

$custom: #102583;
$custom-light: #675fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#102583",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 131
  },
  "hsl": {
    "h": 229.043,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32529,
    "c": 0.15793,
    "h": 266.4
  },
  "luminance": 0.03072
}

Semantic roles & 50–950 ramp

primary

#102583

secondary

#B9A136

accent

#D133F5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#070410

muted

#7A797F

Preview Lab

Preview with #102583

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

Preview Lab → · Contrast checker → · Palette generator →