#2A378C#2A378C

#2A378C is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.1% C 0.141 H 271.4°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#2A378C
RGB	rgb(42, 55, 140)
HSL	hsl(232, 54%, 36%)
HSV	hsv(232, 70%, 55%)
CMYK	cmyk(70%, 60.7%, 0%, 45.1%)
CIE-LAB	lab(27.07, 24.48, -48.90)
CIE-LCH	lch(27.07, 54.69, 296.59°)
OKLab	oklab(38.08% 0.0034 -0.1409)
OKLCH	oklch(38.08% 0.141 271.4)
XYZ	xyz(7.0531, 5.1174, 25.4219)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A378C #8C7F2A

analogous

#2A688C #2A378C #4E2A8C

triadic

#2A378C #8C2A37 #378C2A

tetradic

#2A378C #8C2A68 #8C7F2A #2A8C4E

square

#2A378C #8C2A68 #8C7F2A #2A8C4E

split-complementary

#2A378C #8C4E2A #688C2A

monochromatic

#0E122E #1C255D #2A378C #3849BB #6170D0

Accessibility & contrast

On white

10.38

#2A378C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2A378C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A378C

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A378C	#FFFFFF	#000000	##FFFFFF
##2A378C	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458F

Deuteranopia (green-blind)

#003C8A

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2a378c;
/* rgb */ color: rgb(42, 55, 140);
/* oklch */ color: oklch(38.1% 0.141 271.4);

Tailwind

colors: {
  custom: {
    50: '#716dae',
    500: '#2a378c',
    950: '#000000',
  },
}

SCSS

$custom: #2a378c;
$custom-light: #716dae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a378c",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 140
  },
  "hsl": {
    "h": 232.041,
    "s": 53.846,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38083,
    "c": 0.14098,
    "h": 271.4
  },
  "luminance": 0.05118
}

Semantic roles & 50–950 ramp

primary

#2A378C

secondary

#B5AA5C

accent

#CA4BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2A378C

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

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