#2A3883#2A3883

#2A3883 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.127 H 271.0°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#2A3883
RGB	rgb(42, 56, 131)
HSL	hsl(231, 51%, 34%)
HSV	hsv(231, 68%, 51%)
CMYK	cmyk(67.9%, 57.3%, 0%, 48.6%)
CIE-LAB	lab(26.62, 20.40, -44.03)
CIE-LCH	lch(26.62, 48.53, 294.86°)
OKLab	oklab(37.52% 0.0023 -0.1266)
OKLCH	oklch(37.52% 0.127 271)
XYZ	xyz(6.4644, 4.9587, 22.0848)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3883 #83752A

analogous

#2A6583 #2A3883 #492A83

triadic

#2A3883 #832A38 #38832A

tetradic

#2A3883 #832A65 #83752A #2A8349

square

#2A3883 #832A65 #83752A #2A8349

split-complementary

#2A3883 #83492A #65832A

monochromatic

#0C1026 #1B2455 #2A3883 #394CB1 #5D6ECB

Accessibility & contrast

On white

10.54

#2A3883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2A3883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3883

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3883	#FFFFFF	#000000	##FFFFFF
##2A3883	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a3883;
/* rgb */ color: rgb(42, 56, 131);
/* oklch */ color: oklch(37.5% 0.127 271.0);

Tailwind

colors: {
  custom: {
    50: '#6f6ea8',
    500: '#2a3883',
    950: '#000000',
  },
}

SCSS

$custom: #2a3883;
$custom-light: #6f6ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3883",
  "rgb": {
    "r": 42,
    "g": 56,
    "b": 131
  },
  "hsl": {
    "h": 230.562,
    "s": 51.445,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3752,
    "c": 0.12663,
    "h": 271
  },
  "luminance": 0.04959
}

Semantic roles & 50–950 ramp

primary

#2A3883

secondary

#B1A358

accent

#C54DDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A3883

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

Preview Lab → · Contrast checker → · Palette generator →