#31539A#31539A

#31539A is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.5% C 0.122 H 263.1°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#31539A
RGB	rgb(49, 83, 154)
HSL	hsl(221, 52%, 40%)
HSV	hsv(221, 68%, 60%)
CMYK	cmyk(68.2%, 46.1%, 0%, 39.6%)
CIE-LAB	lab(36.31, 12.05, -42.50)
CIE-LCH	lch(36.31, 44.17, 285.83°)
OKLab	oklab(45.5% -0.0146 -0.1215)
OKLCH	oklch(45.5% 0.122 263.1)
XYZ	xyz(10.1906, 9.1716, 31.7988)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31539A #9A7831

analogous

#31889A #31539A #43319A

triadic

#31539A #9A3153 #539A31

tetradic

#31539A #9A3188 #9A7831 #319A43

square

#31539A #9A3188 #9A7831 #319A43

split-complementary

#31539A #9A4331 #889A31

monochromatic

#13213D #223A6C #31539A #456EC4 #7392D2

Accessibility & contrast

On white

7.41

#31539A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#31539A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31539A

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31539A	#FFFFFF	#000000	##FFFFFF
##31539A	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305B9D

Deuteranopia (green-blind)

#1D5199

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #31539a;
/* rgb */ color: rgb(49, 83, 154);
/* oklch */ color: oklch(45.5% 0.122 263.1);

Tailwind

colors: {
  custom: {
    50: '#7582b8',
    500: '#31539a',
    950: '#000000',
  },
}

SCSS

$custom: #31539a;
$custom-light: #7582b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31539a",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 154
  },
  "hsl": {
    "h": 220.571,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.455,
    "c": 0.12241,
    "h": 263.1
  },
  "luminance": 0.09173
}

Semantic roles & 50–950 ramp

primary

#31539A

secondary

#BAA16C

accent

#AD4DDB

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #31539A

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

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