#31549D#31549D

#31549D is a mid, vivid blue. Relative luminance 0.094; OKLCH L 45.9% C 0.125 H 263.1°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#31549D
RGB	rgb(49, 84, 157)
HSL	hsl(221, 52%, 40%)
HSV	hsv(221, 69%, 62%)
CMYK	cmyk(68.8%, 46.5%, 0%, 38.4%)
CIE-LAB	lab(36.79, 12.51, -43.53)
CIE-LCH	lch(36.79, 45.29, 286.03°)
OKLab	oklab(45.93% -0.0151 -0.1246)
OKLCH	oklch(45.93% 0.125 263.1)
XYZ	xyz(10.5206, 9.4269, 33.1569)
Luminance	0.0943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31549D #9D7A31

analogous

#318A9D #31549D #44319D

triadic

#31549D #9D3154 #549D31

tetradic

#31549D #9D318A #9D7A31 #319D44

square

#31549D #9D318A #9D7A31 #319D44

split-complementary

#31549D #9D4431 #8A9D31

monochromatic

#142240 #223B6E #31549D #466FC5 #7593D4

Accessibility & contrast

On white

7.28

#31549D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#31549D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31549D

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31549D	#FFFFFF	#000000	##FFFFFF
##31549D	1.00	7.28	2.89	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5CA0

Deuteranopia (green-blind)

#1B529C

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #31549d;
/* rgb */ color: rgb(49, 84, 157);
/* oklch */ color: oklch(45.9% 0.125 263.1);

Tailwind

colors: {
  custom: {
    50: '#7683ba',
    500: '#31549d',
    950: '#000000',
  },
}

SCSS

$custom: #31549d;
$custom-light: #7683ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31549d",
  "rgb": {
    "r": 49,
    "g": 84,
    "b": 157
  },
  "hsl": {
    "h": 220.556,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.45931,
    "c": 0.12547,
    "h": 263.1
  },
  "luminance": 0.09428
}

Semantic roles & 50–950 ramp

primary

#31549D

secondary

#BCA36E

accent

#AD4CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #31549D

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

Preview Lab → · Contrast checker → · Palette generator →