#121D40#121D40

#121D40 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.3% C 0.068 H 267.9°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#121D40
RGB	rgb(18, 29, 64)
HSL	hsl(226, 56%, 16%)
HSV	hsv(226, 72%, 25%)
CMYK	cmyk(71.9%, 54.7%, 0%, 74.9%)
CIE-LAB	lab(11.81, 8.66, -23.82)
CIE-LCH	lch(11.81, 25.35, 289.97°)
OKLab	oklab(24.28% -0.0025 -0.0682)
OKLCH	oklch(24.28% 0.068 267.9)
XYZ	xyz(1.6139, 1.3774, 5.0303)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D40 #403512

analogous

#123440 #121D40 #1E1240

triadic

#121D40 #40121D #1D4012

tetradic

#121D40 #401234 #403512 #12401E

square

#121D40 #401234 #403512 #12401E

split-complementary

#121D40 #401E12 #344012

monochromatic

#070B18 #070B18 #121D40 #1F3370 #2D48A0

Accessibility & contrast

On white

16.47

#121D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D40

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D40	#FFFFFF	#000000	##FFFFFF
##121D40	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2141

Deuteranopia (green-blind)

#041D3F

Tritanopia (blue-blind)

#00252B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121d40;
/* rgb */ color: rgb(18, 29, 64);
/* oklch */ color: oklch(24.3% 0.068 267.9);

Tailwind

colors: {
  custom: {
    50: '#565875',
    500: '#121d40',
    950: '#000000',
  },
}

SCSS

$custom: #121d40;
$custom-light: #565875;
$custom-dark: #000000;

JSON

{
  "hex": "#121d40",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 64
  },
  "hsl": {
    "h": 225.652,
    "s": 56.098,
    "l": 16.078
  },
  "oklch": {
    "l": 0.24284,
    "c": 0.0682,
    "h": 267.9
  },
  "luminance": 0.01377
}

Semantic roles & 50–950 ramp

primary

#121D40

secondary

#796935

accent

#BB48DF

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121D40

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

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