#31558E#31558E

#31558E is a mid, moderate blue. Relative luminance 0.091; OKLCH L 45.2% C 0.103 H 259.2°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#31558E
RGB	rgb(49, 85, 142)
HSL	hsl(217, 49%, 37%)
HSV	hsv(217, 65%, 56%)
CMYK	cmyk(65.5%, 40.1%, 0%, 44.3%)
CIE-LAB	lab(36.18, 6.28, -35.45)
CIE-LCH	lch(36.18, 36.00, 280.04°)
OKLab	oklab(45.16% -0.0192 -0.1008)
OKLCH	oklch(45.16% 0.103 259.2)
XYZ	xyz(9.3959, 9.1021, 26.8477)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31558E #8E6A31

analogous

#31848E #31558E #3B318E

triadic

#31558E #8E3155 #558E31

tetradic

#31558E #8E3184 #8E6A31 #318E3B

square

#31558E #8E3184 #8E6A31 #318E3B

split-complementary

#31558E #8E3B31 #848E31

monochromatic

#121F33 #213A61 #31558E #4170BB #6D92CD

Accessibility & contrast

On white

7.45

#31558E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#31558E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31558E

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31558E	#FFFFFF	#000000	##FFFFFF
##31558E	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5A90

Deuteranopia (green-blind)

#2E518D

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #31558e;
/* rgb */ color: rgb(49, 85, 142);
/* oklch */ color: oklch(45.2% 0.103 259.2);

Tailwind

colors: {
  custom: {
    50: '#7384af',
    500: '#31558e',
    950: '#000000',
  },
}

SCSS

$custom: #31558e;
$custom-light: #7384af;
$custom-dark: #000000;

JSON

{
  "hex": "#31558e",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 142
  },
  "hsl": {
    "h": 216.774,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.45163,
    "c": 0.10262,
    "h": 259.2
  },
  "luminance": 0.09103
}

Semantic roles & 50–950 ramp

primary

#31558E

secondary

#B49667

accent

#A350D8

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #31558E

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

Preview Lab → · Contrast checker → · Palette generator →