#10128D#10128D

#10128D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.1% C 0.188 H 267.8°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#10128D
RGB	rgb(16, 18, 141)
HSL	hsl(239, 80%, 31%)
HSV	hsv(239, 89%, 55%)
CMYK	cmyk(88.7%, 87.2%, 0%, 44.7%)
CIE-LAB	lab(17.76, 44.73, -64.90)
CIE-LCH	lch(17.76, 78.82, 304.58°)
OKLab	oklab(31.06% -0.0072 -0.1879)
OKLCH	oklch(31.06% 0.188 267.8)
XYZ	xyz(5.2361, 2.4652, 25.3940)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10128D #8D8B10

analogous

#10508D #10128D #4C108D

triadic

#10128D #8D1012 #128D10

tetradic

#10128D #8D1050 #8D8B10 #108D4C

square

#10128D #8D1050 #8D8B10 #108D4C

split-complementary

#10128D #8D4C10 #508D10

monochromatic

#04041F #0A0B56 #10128D #1619C4 #3033E7

Accessibility & contrast

On white

14.06

#10128D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#10128D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10128D

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10128D	#FFFFFF	#000000	##FFFFFF
##10128D	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003290

Deuteranopia (green-blind)

#00258B

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #10128d;
/* rgb */ color: rgb(16, 18, 141);
/* oklch */ color: oklch(31.1% 0.188 267.8);

Tailwind

colors: {
  custom: {
    50: '#6c55b0',
    500: '#10128d',
    950: '#000000',
  },
}

SCSS

$custom: #10128d;
$custom-light: #6c55b0;
$custom-dark: #000000;

JSON

{
  "hex": "#10128d",
  "rgb": {
    "r": 16,
    "g": 18,
    "b": 141
  },
  "hsl": {
    "h": 239.04,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31063,
    "c": 0.18802,
    "h": 267.8
  },
  "luminance": 0.02466
}

Semantic roles & 50–950 ramp

primary

#10128D

secondary

#C2C037

accent

#F332F6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #10128D

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

Preview Lab → · Contrast checker → · Palette generator →