#31488D#31488D

#31488D is a dark, moderate blue. Relative luminance 0.072; OKLCH L 42.1% C 0.118 H 267.4°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#31488D
RGB	rgb(49, 72, 141)
HSL	hsl(225, 48%, 37%)
HSV	hsv(225, 65%, 55%)
CMYK	cmyk(65.2%, 48.9%, 0%, 44.7%)
CIE-LAB	lab(32.28, 14.52, -41.07)
CIE-LCH	lch(32.28, 43.56, 289.48°)
OKLab	oklab(42.14% -0.0054 -0.1175)
OKLCH	oklch(42.14% 0.118 267.4)
XYZ	xyz(8.3901, 7.2100, 26.1437)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31488D #8D7631

analogous

#31768D #31488D #48318D

triadic

#31488D #8D3148 #488D31

tetradic

#31488D #8D3176 #8D7631 #318D48

square

#31488D #8D3176 #8D7631 #318D48

split-complementary

#31488D #8D4831 #768D31

monochromatic

#111A32 #213160 #31488D #415FBA #6C84CC

Accessibility & contrast

On white

8.60

#31488D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#31488D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31488D

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31488D	#FFFFFF	#000000	##FFFFFF
##31488D	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255090

Deuteranopia (green-blind)

#13488C

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #31488d;
/* rgb */ color: rgb(49, 72, 141);
/* oklch */ color: oklch(42.1% 0.118 267.4);

Tailwind

colors: {
  custom: {
    50: '#737aaf',
    500: '#31488d',
    950: '#000000',
  },
}

SCSS

$custom: #31488d;
$custom-light: #737aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#31488d",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 141
  },
  "hsl": {
    "h": 225,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42142,
    "c": 0.11762,
    "h": 267.4
  },
  "luminance": 0.07211
}

Semantic roles & 50–950 ramp

primary

#31488D

secondary

#B4A066

accent

#B650D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #31488D

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

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