#2A378F#2A378F

#2A378F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.145 H 271.3°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#2A378F
RGB	rgb(42, 55, 143)
HSL	hsl(232, 55%, 36%)
HSV	hsv(232, 71%, 56%)
CMYK	cmyk(70.6%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.32, 25.60, -50.35)
CIE-LCH	lch(27.32, 56.48, 296.96°)
OKLab	oklab(38.35% 0.0034 -0.1452)
OKLCH	oklch(38.35% 0.145 271.3)
XYZ	xyz(7.2773, 5.2071, 26.6028)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A378F #8F822A

analogous

#2A6A8F #2A378F #502A8F

triadic

#2A378F #8F2A37 #378F2A

tetradic

#2A378F #8F2A6A #8F822A #2A8F50

square

#2A378F #8F2A6A #8F822A #2A8F50

split-complementary

#2A378F #8F502A #6A8F2A

monochromatic

#0E1330 #1C2560 #2A378F #3849BE #6271D1

Accessibility & contrast

On white

10.29

#2A378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2A378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A378F

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A378F	#FFFFFF	#000000	##FFFFFF
##2A378F	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a378f;
/* rgb */ color: rgb(42, 55, 143);
/* oklch */ color: oklch(38.3% 0.145 271.3);

Tailwind

colors: {
  custom: {
    50: '#716db1',
    500: '#2a378f',
    950: '#000000',
  },
}

SCSS

$custom: #2a378f;
$custom-light: #716db1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a378f",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 232.277,
    "s": 54.595,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38347,
    "c": 0.14523,
    "h": 271.3
  },
  "luminance": 0.05208
}

Semantic roles & 50–950 ramp

primary

#2A378F

secondary

#B7AB5E

accent

#CB4ADE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2A378F

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

Preview Lab → · Contrast checker → · Palette generator →