#121D7E#121D7E

#121D7E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.160 H 268.3°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#121D7E
RGB	rgb(18, 29, 126)
HSL	hsl(234, 75%, 28%)
HSV	hsv(234, 86%, 49%)
CMYK	cmyk(85.7%, 77%, 0%, 50.6%)
CIE-LAB	lab(17.98, 33.80, -55.08)
CIE-LCH	lch(17.98, 64.62, 301.54°)
OKLab	oklab(30.7% -0.0048 -0.1596)
OKLCH	oklch(30.7% 0.16 268.3)
XYZ	xyz(4.4534, 2.5131, 19.9850)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D7E #7E7312

analogous

#12537E #121D7E #3D127E

triadic

#121D7E #7E121D #1D7E12

tetradic

#121D7E #7E1253 #7E7312 #127E3D

square

#121D7E #7E1253 #7E7312 #127E3D

split-complementary

#121D7E #7E3D12 #537E12

monochromatic

#04061B #0A1148 #121D7E #1A29B4 #2A3CE1

Accessibility & contrast

On white

13.97

#121D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#121D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D7E

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D7E	#FFFFFF	#000000	##FFFFFF
##121D7E	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #121d7e;
/* rgb */ color: rgb(18, 29, 126);
/* oklch */ color: oklch(30.7% 0.160 268.3);

Tailwind

colors: {
  custom: {
    50: '#675aa5',
    500: '#121d7e',
    950: '#000000',
  },
}

SCSS

$custom: #121d7e;
$custom-light: #675aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#121d7e",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 126
  },
  "hsl": {
    "h": 233.889,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30695,
    "c": 0.1597,
    "h": 268.3
  },
  "luminance": 0.02514
}

Semantic roles & 50–950 ramp

primary

#121D7E

secondary

#B4A738

accent

#DF36F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #121D7E

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

Preview Lab → · Contrast checker → · Palette generator →