#121257#121257

#121257 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.3% C 0.119 H 273.1°. Best body text is #FFFFFF at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#121257
RGB	rgb(18, 18, 87)
HSL	hsl(240, 66%, 21%)
HSV	hsv(240, 79%, 34%)
CMYK	cmyk(79.3%, 79.3%, 0%, 65.9%)
CIE-LAB	lab(10.91, 26.17, -41.17)
CIE-LCH	lch(10.91, 48.78, 302.44°)
OKLab	oklab(24.31% 0.0064 -0.1191)
OKLCH	oklch(24.31% 0.119 273.1)
XYZ	xyz(2.1855, 1.2491, 9.1409)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121257 #575712

analogous

#123457 #121257 #341257

triadic

#121257 #571212 #125712

tetradic

#121257 #571234 #575712 #125734

square

#121257 #571234 #575712 #125734

split-complementary

#121257 #573412 #345712

monochromatic

#050519 #080824 #121257 #1C1C8A #2727BC

Accessibility & contrast

On white

16.80

#121257 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#121257 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121257

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121257	#FFFFFF	#000000	##FFFFFF
##121257	1.00	16.80	1.25	16.80
#FFFFFF	16.80	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002159

Deuteranopia (green-blind)

#001A56

Tritanopia (blue-blind)

#002633

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121257;
/* rgb */ color: rgb(18, 18, 87);
/* oklch */ color: oklch(24.3% 0.119 273.1);

Tailwind

colors: {
  custom: {
    50: '#5d5087',
    500: '#121257',
    950: '#000000',
  },
}

SCSS

$custom: #121257;
$custom-light: #5d5087;
$custom-dark: #000000;

JSON

{
  "hex": "#121257",
  "rgb": {
    "r": 18,
    "g": 18,
    "b": 87
  },
  "hsl": {
    "h": 240,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.24312,
    "c": 0.11928,
    "h": 273.1
  },
  "luminance": 0.01249
}

Semantic roles & 50–950 ramp

primary

#121257

secondary

#909035

accent

#E93FE9

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121257

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

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