#12277E#12277E

#12277E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.148 H 266.6°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).

Color values

HEX	#12277E
RGB	rgb(18, 39, 126)
HSL	hsl(228, 75%, 28%)
HSV	hsv(228, 86%, 49%)
CMYK	cmyk(85.7%, 69%, 0%, 50.6%)
CIE-LAB	lab(20.38, 27.21, -51.11)
CIE-LCH	lch(20.38, 57.91, 298.03°)
OKLab	oklab(32.43% -0.0088 -0.1481)
OKLCH	oklch(32.43% 0.148 266.6)
XYZ	xyz(4.7396, 3.0854, 20.0804)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12277E #7E6912

analogous

#125D7E #12277E #33127E

triadic

#12277E #7E1227 #277E12

tetradic

#12277E #7E125D #7E6912 #127E33

square

#12277E #7E125D #7E6912 #127E33

split-complementary

#12277E #7E3312 #5D7E12

monochromatic

#04081B #0A1648 #12277E #1A38B4 #2A4DE1

Accessibility & contrast

On white

12.99

#12277E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#12277E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12277E

12.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12277E	#FFFFFF	#000000	##FFFFFF
##12277E	1.00	12.99	1.62	12.99
#FFFFFF	12.99	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003681

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #12277e;
/* rgb */ color: rgb(18, 39, 126);
/* oklch */ color: oklch(32.4% 0.148 266.6);

Tailwind

colors: {
  custom: {
    50: '#6661a4',
    500: '#12277e',
    950: '#000000',
  },
}

SCSS

$custom: #12277e;
$custom-light: #6661a4;
$custom-dark: #000000;

JSON

{
  "hex": "#12277e",
  "rgb": {
    "r": 18,
    "g": 39,
    "b": 126
  },
  "hsl": {
    "h": 228.333,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.32433,
    "c": 0.14835,
    "h": 266.6
  },
  "luminance": 0.03086
}

Semantic roles & 50–950 ramp

primary

#12277E

secondary

#B49C38

accent

#CD36F2

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #12277E

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

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