#12103D#12103D

#12103D is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.0% C 0.083 H 278.4°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#12103D
RGB	rgb(18, 16, 61)
HSL	hsl(243, 58%, 15%)
HSV	hsv(243, 74%, 24%)
CMYK	cmyk(70.5%, 73.8%, 0%, 76.1%)
CIE-LAB	lab(7.55, 17.34, -28.58)
CIE-LCH	lch(7.55, 33.43, 301.25°)
OKLab	oklab(21.02% 0.0122 -0.0824)
OKLCH	oklch(21.02% 0.083 278.4)
XYZ	xyz(1.2768, 0.8360, 4.5081)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.54

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12103D #3B3D10

analogous

#10243D #12103D #29103D

triadic

#12103D #3D1210 #103D12

tetradic

#12103D #3D1024 #3B3D10 #103D29

square

#12103D #3D1024 #3B3D10 #103D29

split-complementary

#12103D #3D2910 #243D10

monochromatic

#070618 #070618 #12103D #201D6D #2F299E

Accessibility & contrast

On white

17.99

#12103D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#12103D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12103D

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12103D	#FFFFFF	#000000	##FFFFFF
##12103D	1.00	17.99	1.17	17.99
#FFFFFF	17.99	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183E

Deuteranopia (green-blind)

#00153C

Tritanopia (blue-blind)

#001B24

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #12103d;
/* rgb */ color: rgb(18, 16, 61);
/* oklch */ color: oklch(21.0% 0.083 278.4);

Tailwind

colors: {
  custom: {
    50: '#564e73',
    500: '#12103d',
    950: '#000000',
  },
}

SCSS

$custom: #12103d;
$custom-light: #564e73;
$custom-dark: #000000;

JSON

{
  "hex": "#12103d",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 61
  },
  "hsl": {
    "h": 242.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21018,
    "c": 0.08326,
    "h": 278.4
  },
  "luminance": 0.00836
}

Semantic roles & 50–950 ramp

primary

#12103D

secondary

#747732

accent

#E246DB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #12103D

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

Preview Lab → · Contrast checker → · Palette generator →