#121F4C#121F4C

#121F4C is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.085 H 267.8°. Best body text is #FFFFFF at 15.84:1 contrast (WCAG AA passes).

Color values

HEX	#121F4C
RGB	rgb(18, 31, 76)
HSL	hsl(227, 62%, 18%)
HSV	hsv(227, 76%, 30%)
CMYK	cmyk(76.3%, 59.2%, 0%, 70.2%)
CIE-LAB	lab(13.41, 12.25, -29.57)
CIE-LCH	lch(13.41, 32.01, 292.51°)
OKLab	oklab(25.81% -0.0032 -0.085)
OKLCH	oklch(25.81% 0.085 267.8)
XYZ	xyz(2.0435, 1.6302, 7.0430)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F4C #4C3F12

analogous

#123C4C #121F4C #22124C

triadic

#121F4C #4C121F #1F4C12

tetradic

#121F4C #4C123C #4C3F12 #124C22

square

#121F4C #4C123C #4C3F12 #124C22

split-complementary

#121F4C #4C2212 #3C4C12

monochromatic

#060A19 #060B1B #121F4C #1E337D #2947AF

Accessibility & contrast

On white

15.84

#121F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#121F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F4C

15.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F4C	#FFFFFF	#000000	##FFFFFF
##121F4C	1.00	15.84	1.33	15.84
#FFFFFF	15.84	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02254E

Deuteranopia (green-blind)

#00204B

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121f4c;
/* rgb */ color: rgb(18, 31, 76);
/* oklch */ color: oklch(25.8% 0.085 267.8);

Tailwind

colors: {
  custom: {
    50: '#595a7e',
    500: '#121f4c',
    950: '#000000',
  },
}

SCSS

$custom: #121f4c;
$custom-light: #595a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#121f4c",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 76
  },
  "hsl": {
    "h": 226.552,
    "s": 61.702,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25809,
    "c": 0.08511,
    "h": 267.8
  },
  "luminance": 0.0163
}

Semantic roles & 50–950 ramp

primary

#121F4C

secondary

#857335

accent

#C143E5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #121F4C

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

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