#31408C#31408C

#31408C is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.127 H 271.2°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#31408C
RGB	rgb(49, 64, 140)
HSL	hsl(230, 48%, 37%)
HSV	hsv(230, 65%, 55%)
CMYK	cmyk(65%, 54.3%, 0%, 45.1%)
CIE-LAB	lab(29.94, 19.55, -44.22)
CIE-LCH	lch(29.94, 48.35, 293.85°)
OKLab	oklab(40.35% 0.0027 -0.1269)
OKLCH	oklch(40.35% 0.127 271.2)
XYZ	xyz(7.8321, 6.2125, 25.5923)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31408C #8C7D31

analogous

#316E8C #31408C #50318C

triadic

#31408C #8C3140 #408C31

tetradic

#31408C #8C316E #8C7D31 #318C50

square

#31408C #8C316E #8C7D31 #318C50

split-complementary

#31408C #8C5031 #6E8C31

monochromatic

#111731 #212B5F #31408C #4155B9 #6C7CCC

Accessibility & contrast

On white

9.36

#31408C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#31408C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31408C

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31408C	#FFFFFF	#000000	##FFFFFF
##31408C	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4B8F

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #31408c;
/* rgb */ color: rgb(49, 64, 140);
/* oklch */ color: oklch(40.3% 0.127 271.2);

Tailwind

colors: {
  custom: {
    50: '#7374ae',
    500: '#31408c',
    950: '#000000',
  },
}

SCSS

$custom: #31408c;
$custom-light: #7374ae;
$custom-dark: #000000;

JSON

{
  "hex": "#31408c",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 140
  },
  "hsl": {
    "h": 230.11,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40347,
    "c": 0.12691,
    "h": 271.2
  },
  "luminance": 0.06213
}

Semantic roles & 50–950 ramp

primary

#31408C

secondary

#B3A666

accent

#C150D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31408C

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

Preview Lab → · Contrast checker → · Palette generator →