#2A377E#2A377E

#2A377E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.121 H 271.4°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#2A377E
RGB	rgb(42, 55, 126)
HSL	hsl(231, 50%, 33%)
HSV	hsv(231, 67%, 49%)
CMYK	cmyk(66.7%, 56.3%, 0%, 50.6%)
CIE-LAB	lab(25.95, 19.20, -41.97)
CIE-LCH	lch(25.95, 46.16, 294.58°)
OKLab	oklab(36.9% 0.003 -0.1206)
OKLCH	oklch(36.9% 0.121 271.4)
XYZ	xyz(6.0857, 4.7304, 20.3270)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A377E #7E712A

analogous

#2A617E #2A377E #472A7E

triadic

#2A377E #7E2A37 #377E2A

tetradic

#2A377E #7E2A61 #7E712A #2A7E47

square

#2A377E #7E2A61 #7E712A #2A7E47

split-complementary

#2A377E #7E472A #617E2A

monochromatic

#0B0F22 #1B2350 #2A377E #394BAC #5A6BC8

Accessibility & contrast

On white

10.79

#2A377E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2A377E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A377E

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A377E	#FFFFFF	#000000	##FFFFFF
##2A377E	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034180

Deuteranopia (green-blind)

#003A7D

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a377e;
/* rgb */ color: rgb(42, 55, 126);
/* oklch */ color: oklch(36.9% 0.121 271.4);

Tailwind

colors: {
  custom: {
    50: '#6e6da4',
    500: '#2a377e',
    950: '#000000',
  },
}

SCSS

$custom: #2a377e;
$custom-light: #6e6da4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a377e",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 126
  },
  "hsl": {
    "h": 230.714,
    "s": 50,
    "l": 32.941
  },
  "oklch": {
    "l": 0.369,
    "c": 0.12061,
    "h": 271.4
  },
  "luminance": 0.04731
}

Semantic roles & 50–950 ramp

primary

#2A377E

secondary

#AEA056

accent

#C44EDA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2A377E

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

Preview Lab → · Contrast checker → · Palette generator →