#31387E#31387E

#31387E is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.6% C 0.117 H 275.0°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#31387E
RGB	rgb(49, 56, 126)
HSL	hsl(235, 44%, 34%)
HSV	hsv(235, 61%, 49%)
CMYK	cmyk(61.1%, 55.6%, 0%, 50.6%)
CIE-LAB	lab(26.70, 19.85, -40.75)
CIE-LCH	lch(26.70, 45.32, 295.98°)
OKLab	oklab(37.58% 0.0101 -0.1168)
OKLCH	oklch(37.58% 0.117 275)
XYZ	xyz(6.4455, 4.9872, 20.3576)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31387E #7E7731

analogous

#315F7E #31387E #51317E

triadic

#31387E #7E3138 #387E31

tetradic

#31387E #7E315F #7E7731 #317E51

square

#31387E #7E315F #7E7731 #317E51

split-complementary

#31387E #7E5131 #5F7E31

monochromatic

#0F1126 #202452 #31387E #424CAA #666EC3

Accessibility & contrast

On white

10.51

#31387E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#31387E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31387E

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31387E	#FFFFFF	#000000	##FFFFFF
##31387E	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4380

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004855

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #31387e;
/* rgb */ color: rgb(49, 56, 126);
/* oklch */ color: oklch(37.6% 0.117 275.0);

Tailwind

colors: {
  custom: {
    50: '#716ea4',
    500: '#31387e',
    950: '#000000',
  },
}

SCSS

$custom: #31387e;
$custom-light: #716ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#31387e",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 126
  },
  "hsl": {
    "h": 234.545,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37582,
    "c": 0.1172,
    "h": 275
  },
  "luminance": 0.04988
}

Semantic roles & 50–950 ramp

primary

#31387E

secondary

#ABA460

accent

#C854D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #31387E

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

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