#121957#121957

#121957 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.6% C 0.111 H 271.0°. Best body text is #FFFFFF at 16.12:1 contrast (WCAG AA passes).

Color values

HEX	#121957
RGB	rgb(18, 25, 87)
HSL	hsl(234, 66%, 21%)
HSV	hsv(234, 79%, 34%)
CMYK	cmyk(79.3%, 71.3%, 0%, 65.9%)
CIE-LAB	lab(12.68, 21.34, -38.26)
CIE-LCH	lch(12.68, 43.81, 299.15°)
OKLab	oklab(25.59% 0.0019 -0.1106)
OKLCH	oklch(25.59% 0.111 271)
XYZ	xyz(2.3168, 1.5117, 9.1847)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121957 #575012

analogous

#123B57 #121957 #2D1257

triadic

#121957 #571219 #195712

tetradic

#121957 #57123B #575012 #12572D

square

#121957 #57123B #575012 #12572D

split-complementary

#121957 #572D12 #3B5712

monochromatic

#050719 #080A24 #121957 #1C288A #2736BC

Accessibility & contrast

On white

16.12

#121957 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121957 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121957

16.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121957	#FFFFFF	#000000	##FFFFFF
##121957	1.00	16.12	1.30	16.12
#FFFFFF	16.12	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002459

Deuteranopia (green-blind)

#001E56

Tritanopia (blue-blind)

#002935

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121957;
/* rgb */ color: rgb(18, 25, 87);
/* oklch */ color: oklch(25.6% 0.111 271.0);

Tailwind

colors: {
  custom: {
    50: '#5c5587',
    500: '#121957',
    950: '#000000',
  },
}

SCSS

$custom: #121957;
$custom-light: #5c5587;
$custom-dark: #000000;

JSON

{
  "hex": "#121957",
  "rgb": {
    "r": 18,
    "g": 25,
    "b": 87
  },
  "hsl": {
    "h": 233.913,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25587,
    "c": 0.11065,
    "h": 271
  },
  "luminance": 0.01512
}

Semantic roles & 50–950 ramp

primary

#121957

secondary

#908635

accent

#D73FE9

background

#F5F5F8

surface

#E9E8EF

border

#C5C4CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #121957

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

Preview Lab → · Contrast checker → · Palette generator →