#31529A#31529A

#31529A is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.3% C 0.124 H 263.7°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#31529A
RGB	rgb(49, 82, 154)
HSL	hsl(221, 52%, 40%)
HSV	hsv(221, 68%, 60%)
CMYK	cmyk(68.2%, 46.8%, 0%, 39.6%)
CIE-LAB	lab(36.02, 12.71, -42.96)
CIE-LCH	lch(36.02, 44.80, 286.48°)
OKLab	oklab(45.28% -0.0136 -0.1229)
OKLCH	oklch(45.28% 0.124 263.7)
XYZ	xyz(10.1146, 9.0197, 31.7735)
Luminance	0.0902 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31529A #9A7931

analogous

#31869A #31529A #45319A

triadic

#31529A #9A3152 #529A31

tetradic

#31529A #9A3186 #9A7931 #319A45

square

#31529A #9A3186 #9A7931 #319A45

split-complementary

#31529A #9A4531 #869A31

monochromatic

#13213D #22396C #31529A #456CC4 #7391D2

Accessibility & contrast

On white

7.49

#31529A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#31529A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31529A

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31529A	#FFFFFF	#000000	##FFFFFF
##31529A	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5A9D

Deuteranopia (green-blind)

#1A5099

Tritanopia (blue-blind)

#00636E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #31529a;
/* rgb */ color: rgb(49, 82, 154);
/* oklch */ color: oklch(45.3% 0.124 263.7);

Tailwind

colors: {
  custom: {
    50: '#7582b8',
    500: '#31529a',
    950: '#000000',
  },
}

SCSS

$custom: #31529a;
$custom-light: #7582b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31529a",
  "rgb": {
    "r": 49,
    "g": 82,
    "b": 154
  },
  "hsl": {
    "h": 221.143,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45277,
    "c": 0.12367,
    "h": 263.7
  },
  "luminance": 0.09021
}

Semantic roles & 50–950 ramp

primary

#31529A

secondary

#BAA26C

accent

#AE4DDB

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #31529A

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

Preview Lab → · Contrast checker → · Palette generator →