#2A3588#2A3588

#2A3588 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.138 H 272.1°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#2A3588
RGB	rgb(42, 53, 136)
HSL	hsl(233, 53%, 35%)
HSV	hsv(233, 69%, 53%)
CMYK	cmyk(69.1%, 61%, 0%, 46.7%)
CIE-LAB	lab(26.20, 24.33, -47.82)
CIE-LCH	lch(26.20, 53.66, 296.97°)
OKLab	oklab(37.34% 0.0051 -0.1378)
OKLCH	oklch(37.34% 0.138 272.1)
XYZ	xyz(6.6704, 4.8154, 23.8657)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3588 #887D2A

analogous

#2A6488 #2A3588 #4E2A88

triadic

#2A3588 #882A35 #35882A

tetradic

#2A3588 #882A64 #887D2A #2A884E

square

#2A3588 #882A64 #887D2A #2A884E

split-complementary

#2A3588 #884E2A #64882A

monochromatic

#0D112A #1C2359 #2A3588 #3847B7 #5F6CCE

Accessibility & contrast

On white

10.70

#2A3588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2A3588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3588

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3588	#FFFFFF	#000000	##FFFFFF
##2A3588	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2a3588;
/* rgb */ color: rgb(42, 53, 136);
/* oklch */ color: oklch(37.3% 0.138 272.1);

Tailwind

colors: {
  custom: {
    50: '#706cab',
    500: '#2a3588',
    950: '#000000',
  },
}

SCSS

$custom: #2a3588;
$custom-light: #706cab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3588",
  "rgb": {
    "r": 42,
    "g": 53,
    "b": 136
  },
  "hsl": {
    "h": 232.979,
    "s": 52.809,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37337,
    "c": 0.1379,
    "h": 272.1
  },
  "luminance": 0.04816
}

Semantic roles & 50–950 ramp

primary

#2A3588

secondary

#B3A95B

accent

#CB4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2A3588

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

Preview Lab → · Contrast checker → · Palette generator →