#31307C#31307C

#31307C is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.126 H 278.6°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#31307C
RGB	rgb(49, 48, 124)
HSL	hsl(241, 44%, 34%)
HSV	hsv(241, 61%, 49%)
CMYK	cmyk(60.5%, 61.3%, 0%, 51.4%)
CIE-LAB	lab(24.39, 24.55, -43.22)
CIE-LCH	lch(24.39, 49.71, 299.60°)
OKLab	oklab(35.82% 0.0187 -0.1241)
OKLCH	oklch(35.82% 0.126 278.6)
XYZ	xyz(5.9605, 4.2217, 19.5656)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31307C #7B7C30

analogous

#30557C #31307C #57307C

triadic

#31307C #7C3130 #307C31

tetradic

#31307C #7C3055 #7B7C30 #307C57

square

#31307C #7C3055 #7B7C30 #307C57

split-complementary

#31307C #7C5730 #557C30

monochromatic

#0E0E24 #201F50 #31307C #4241A8 #6564C3

Accessibility & contrast

On white

11.39

#31307C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#31307C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31307C

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31307C	#FFFFFF	#000000	##FFFFFF
##31307C	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00377A

Tritanopia (blue-blind)

#014251

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31307c;
/* rgb */ color: rgb(49, 48, 124);
/* oklch */ color: oklch(35.8% 0.126 278.6);

Tailwind

colors: {
  custom: {
    50: '#7168a3',
    500: '#31307c',
    950: '#000000',
  },
}

SCSS

$custom: #31307c;
$custom-light: #7168a3;
$custom-dark: #000000;

JSON

{
  "hex": "#31307c",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 124
  },
  "hsl": {
    "h": 240.789,
    "s": 44.186,
    "l": 33.725
  },
  "oklch": {
    "l": 0.35816,
    "c": 0.12552,
    "h": 278.6
  },
  "luminance": 0.04222
}

Semantic roles & 50–950 ramp

primary

#31307C

secondary

#A9AA5E

accent

#D454D2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31307C

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

Preview Lab → · Contrast checker → · Palette generator →