#121857#121857

#121857 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.112 H 271.4°. Best body text is #FFFFFF at 16.23:1 contrast (WCAG AA passes).

Color values

HEX	#121857
RGB	rgb(18, 24, 87)
HSL	hsl(235, 66%, 21%)
HSV	hsv(235, 79%, 34%)
CMYK	cmyk(79.3%, 72.4%, 0%, 65.9%)
CIE-LAB	lab(12.41, 22.06, -38.70)
CIE-LCH	lch(12.41, 44.55, 299.68°)
OKLab	oklab(25.39% 0.0026 -0.1119)
OKLCH	oklch(25.39% 0.112 271.4)
XYZ	xyz(2.2958, 1.4697, 9.1777)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121857 #575112

analogous

#123A57 #121857 #2E1257

triadic

#121857 #571218 #185712

tetradic

#121857 #57123A #575112 #12572E

square

#121857 #57123A #575112 #12572E

split-complementary

#121857 #572E12 #3A5712

monochromatic

#050719 #080A24 #121857 #1C268A #2734BC

Accessibility & contrast

On white

16.23

#121857 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#121857 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121857

16.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121857	#FFFFFF	#000000	##FFFFFF
##121857	1.00	16.23	1.29	16.23
#FFFFFF	16.23	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002459

Deuteranopia (green-blind)

#001D56

Tritanopia (blue-blind)

#002935

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #121857;
/* rgb */ color: rgb(18, 24, 87);
/* oklch */ color: oklch(25.4% 0.112 271.4);

Tailwind

colors: {
  custom: {
    50: '#5c5587',
    500: '#121857',
    950: '#000000',
  },
}

SCSS

$custom: #121857;
$custom-light: #5c5587;
$custom-dark: #000000;

JSON

{
  "hex": "#121857",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 87
  },
  "hsl": {
    "h": 234.783,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25391,
    "c": 0.11195,
    "h": 271.4
  },
  "luminance": 0.0147
}

Semantic roles & 50–950 ramp

primary

#121857

secondary

#908835

accent

#DA3FE9

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #121857

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

Preview Lab → · Contrast checker → · Palette generator →