#121D7F#121D7F

#121D7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.161 H 268.2°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#121D7F
RGB	rgb(18, 29, 127)
HSL	hsl(234, 75%, 28%)
HSV	hsv(234, 86%, 50%)
CMYK	cmyk(85.8%, 77.2%, 0%, 50.2%)
CIE-LAB	lab(18.09, 34.17, -55.52)
CIE-LCH	lch(18.09, 65.19, 301.61°)
OKLab	oklab(30.81% -0.0049 -0.1609)
OKLCH	oklch(30.81% 0.161 268.2)
XYZ	xyz(4.5183, 2.5391, 20.3265)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D7F #7F7412

analogous

#12537F #121D7F #3D127F

triadic

#121D7F #7F121D #1D7F12

tetradic

#121D7F #7F1253 #7F7412 #127F3D

square

#121D7F #7F1253 #7F7412 #127F3D

split-complementary

#121D7F #7F3D12 #537F12

monochromatic

#04061B #0A1149 #121D7F #1A29B5 #2B3DE1

Accessibility & contrast

On white

13.93

#121D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#121D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D7F

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D7F	#FFFFFF	#000000	##FFFFFF
##121D7F	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003282

Deuteranopia (green-blind)

#00277D

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #121d7f;
/* rgb */ color: rgb(18, 29, 127);
/* oklch */ color: oklch(30.8% 0.161 268.2);

Tailwind

colors: {
  custom: {
    50: '#685aa5',
    500: '#121d7f',
    950: '#000000',
  },
}

SCSS

$custom: #121d7f;
$custom-light: #685aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#121d7f",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 127
  },
  "hsl": {
    "h": 233.945,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30813,
    "c": 0.16099,
    "h": 268.2
  },
  "luminance": 0.0254
}

Semantic roles & 50–950 ramp

primary

#121D7F

secondary

#B5A838

accent

#DF36F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #121D7F

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

Preview Lab → · Contrast checker → · Palette generator →