#121657#121657

#121657 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.115 H 272.0°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#121657
RGB	rgb(18, 22, 87)
HSL	hsl(237, 66%, 21%)
HSV	hsv(237, 79%, 34%)
CMYK	cmyk(79.3%, 74.7%, 0%, 65.9%)
CIE-LAB	lab(11.89, 23.47, -39.56)
CIE-LCH	lch(11.89, 45.99, 300.68°)
OKLab	oklab(25.01% 0.004 -0.1144)
OKLCH	oklch(25.01% 0.115 272)
XYZ	xyz(2.2561, 1.3903, 9.1644)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121657 #575312

analogous

#123857 #121657 #301257

triadic

#121657 #571216 #165712

tetradic

#121657 #571238 #575312 #125730

square

#121657 #571238 #575312 #125730

split-complementary

#121657 #573012 #385712

monochromatic

#050619 #080924 #121657 #1C238A #2730BC

Accessibility & contrast

On white

16.43

#121657 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121657 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121657

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121657	#FFFFFF	#000000	##FFFFFF
##121657	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002359

Deuteranopia (green-blind)

#001C56

Tritanopia (blue-blind)

#002834

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121657;
/* rgb */ color: rgb(18, 22, 87);
/* oklch */ color: oklch(25.0% 0.115 272.0);

Tailwind

colors: {
  custom: {
    50: '#5d5387',
    500: '#121657',
    950: '#000000',
  },
}

SCSS

$custom: #121657;
$custom-light: #5d5387;
$custom-dark: #000000;

JSON

{
  "hex": "#121657",
  "rgb": {
    "r": 18,
    "g": 22,
    "b": 87
  },
  "hsl": {
    "h": 236.522,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25013,
    "c": 0.1145,
    "h": 272
  },
  "luminance": 0.01391
}

Semantic roles & 50–950 ramp

primary

#121657

secondary

#908A35

accent

#DF3FE9

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121657

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

Preview Lab → · Contrast checker → · Palette generator →