#12123D#12123D

#12123D is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.080 H 277.2°. Best body text is #FFFFFF at 17.80:1 contrast (WCAG AA passes).

Color values

HEX	#12123D
RGB	rgb(18, 18, 61)
HSL	hsl(240, 54%, 15%)
HSV	hsv(240, 70%, 24%)
CMYK	cmyk(70.5%, 70.5%, 0%, 76.1%)
CIE-LAB	lab(8.11, 15.89, -27.67)
CIE-LCH	lch(8.11, 31.91, 299.86°)
OKLab	oklab(21.43% 0.0101 -0.0796)
OKLCH	oklch(21.43% 0.08 277.2)
XYZ	xyz(1.3078, 0.8980, 4.5184)
Luminance	0.0090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12123D #3D3D12

analogous

#12273D #12123D #27123D

triadic

#12123D #3D1212 #123D12

tetradic

#12123D #3D1227 #3D3D12 #123D27

square

#12123D #3D1227 #3D3D12 #123D27

split-complementary

#12123D #3D2712 #273D12

monochromatic

#070718 #070718 #12123D #20206C #2E2E9C

Accessibility & contrast

On white

17.80

#12123D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#12123D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12123D

17.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12123D	#FFFFFF	#000000	##FFFFFF
##12123D	1.00	17.80	1.18	17.80
#FFFFFF	17.80	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3E

Deuteranopia (green-blind)

#00163C

Tritanopia (blue-blind)

#001D25

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #12123d;
/* rgb */ color: rgb(18, 18, 61);
/* oklch */ color: oklch(21.4% 0.080 277.2);

Tailwind

colors: {
  custom: {
    50: '#564f73',
    500: '#12123d',
    950: '#000000',
  },
}

SCSS

$custom: #12123d;
$custom-light: #564f73;
$custom-dark: #000000;

JSON

{
  "hex": "#12123d",
  "rgb": {
    "r": 18,
    "g": 18,
    "b": 61
  },
  "hsl": {
    "h": 240,
    "s": 54.43,
    "l": 15.49
  },
  "oklch": {
    "l": 0.21433,
    "c": 0.08027,
    "h": 277.2
  },
  "luminance": 0.00898
}

Semantic roles & 50–950 ramp

primary

#12123D

secondary

#767635

accent

#DE4ADE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #12123D

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

Preview Lab → · Contrast checker → · Palette generator →