#2531A2#2531A2

#2531A2 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.8% C 0.180 H 270.3°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#2531A2
RGB	rgb(37, 49, 162)
HSL	hsl(234, 63%, 39%)
HSV	hsv(234, 77%, 64%)
CMYK	cmyk(77.2%, 69.8%, 0%, 36.5%)
CIE-LAB	lab(27.29, 35.95, -62.02)
CIE-LCH	lch(27.29, 71.68, 300.10°)
OKLab	oklab(38.79% 0.0009 -0.1795)
OKLCH	oklch(38.79% 0.18 270.3)
XYZ	xyz(8.3806, 5.1977, 34.7370)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2531A2 #A29625

analogous

#2570A2 #2531A2 #5825A2

triadic

#2531A2 #A22531 #31A225

tetradic

#2531A2 #A22570 #A29625 #25A258

square

#2531A2 #A22570 #A29625 #25A258

split-complementary

#2531A2 #A25825 #70A225

monochromatic

#0E133E #1A2270 #2531A2 #3443D1 #6571DC

Accessibility & contrast

On white

10.30

#2531A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2531A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2531A2

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2531A2	#FFFFFF	#000000	##FFFFFF
##2531A2	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A5

Deuteranopia (green-blind)

#003AA0

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2531a2;
/* rgb */ color: rgb(37, 49, 162);
/* oklch */ color: oklch(38.8% 0.180 270.3);

Tailwind

colors: {
  custom: {
    50: '#7569bf',
    500: '#2531a2',
    950: '#000000',
  },
}

SCSS

$custom: #2531a2;
$custom-light: #7569bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2531a2",
  "rgb": {
    "r": 37,
    "g": 49,
    "b": 162
  },
  "hsl": {
    "h": 234.24,
    "s": 62.814,
    "l": 39.02
  },
  "oklch": {
    "l": 0.38786,
    "c": 0.17952,
    "h": 270.3
  },
  "luminance": 0.05199
}

Semantic roles & 50–950 ramp

primary

#2531A2

secondary

#C2B861

accent

#D642E6

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2531A2

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

Preview Lab → · Contrast checker → · Palette generator →