#121F7E#121F7E

#121F7E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.158 H 268.0°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#121F7E
RGB	rgb(18, 31, 126)
HSL	hsl(233, 75%, 28%)
HSV	hsv(233, 86%, 49%)
CMYK	cmyk(85.7%, 75.4%, 0%, 50.6%)
CIE-LAB	lab(18.43, 32.54, -54.33)
CIE-LCH	lch(18.43, 63.33, 300.92°)
OKLab	oklab(31.02% -0.0055 -0.1575)
OKLCH	oklch(31.02% 0.158 268)
XYZ	xyz(4.5040, 2.6144, 20.0019)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F7E #7E7112

analogous

#12557E #121F7E #3B127E

triadic

#121F7E #7E121F #1F7E12

tetradic

#121F7E #7E1255 #7E7112 #127E3B

square

#121F7E #7E1255 #7E7112 #127E3B

split-complementary

#121F7E #7E3B12 #557E12

monochromatic

#04071B #0A1248 #121F7E #1A2CB4 #2A40E1

Accessibility & contrast

On white

13.79

#121F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#121F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F7E

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F7E	#FFFFFF	#000000	##FFFFFF
##121F7E	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#00287C

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #121f7e;
/* rgb */ color: rgb(18, 31, 126);
/* oklch */ color: oklch(31.0% 0.158 268.0);

Tailwind

colors: {
  custom: {
    50: '#675ba4',
    500: '#121f7e',
    950: '#000000',
  },
}

SCSS

$custom: #121f7e;
$custom-light: #675ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#121f7e",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 126
  },
  "hsl": {
    "h": 232.778,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31017,
    "c": 0.15757,
    "h": 268
  },
  "luminance": 0.02615
}

Semantic roles & 50–950 ramp

primary

#121F7E

secondary

#B4A538

accent

#DB36F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #121F7E

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

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