#31397E#31397E

#31397E is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.8% C 0.116 H 274.5°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#31397E
RGB	rgb(49, 57, 126)
HSL	hsl(234, 44%, 34%)
HSV	hsv(234, 61%, 49%)
CMYK	cmyk(61.1%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(26.98, 19.17, -40.30)
CIE-LCH	lch(26.98, 44.62, 295.44°)
OKLab	oklab(37.79% 0.009 -0.1154)
OKLCH	oklch(37.79% 0.116 274.5)
XYZ	xyz(6.4944, 5.0851, 20.3739)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31397E #7E7631

analogous

#31607E #31397E #50317E

triadic

#31397E #7E3139 #397E31

tetradic

#31397E #7E3160 #7E7631 #317E50

square

#31397E #7E3160 #7E7631 #317E50

split-complementary

#31397E #7E5031 #607E31

monochromatic

#0F1126 #202552 #31397E #424DAA #6670C3

Accessibility & contrast

On white

10.41

#31397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#31397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31397E

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31397E	#FFFFFF	#000000	##FFFFFF
##31397E	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104380

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31397e;
/* rgb */ color: rgb(49, 57, 126);
/* oklch */ color: oklch(37.8% 0.116 274.5);

Tailwind

colors: {
  custom: {
    50: '#716fa4',
    500: '#31397e',
    950: '#000000',
  },
}

SCSS

$custom: #31397e;
$custom-light: #716fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#31397e",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 233.766,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37791,
    "c": 0.11578,
    "h": 274.5
  },
  "luminance": 0.05086
}

Semantic roles & 50–950 ramp

primary

#31397E

secondary

#ABA360

accent

#C654D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #31397E

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

Preview Lab → · Contrast checker → · Palette generator →