#313E8D#313E8D

#313E8D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.131 H 272.1°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#313E8D
RGB	rgb(49, 62, 141)
HSL	hsl(232, 48%, 37%)
HSV	hsv(232, 65%, 55%)
CMYK	cmyk(65.2%, 56%, 0%, 44.7%)
CIE-LAB	lab(29.46, 21.27, -45.61)
CIE-LCH	lch(29.46, 50.32, 295.00°)
OKLab	oklab(40.01% 0.0048 -0.131)
OKLCH	oklch(40.01% 0.131 272.1)
XYZ	xyz(7.7954, 6.0206, 25.9454)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E8D #8D8031

analogous

#316C8D #313E8D #52318D

triadic

#313E8D #8D313E #3E8D31

tetradic

#313E8D #8D316C #8D8031 #318D52

square

#313E8D #8D316C #8D8031 #318D52

split-complementary

#313E8D #8D5231 #6C8D31

monochromatic

#111632 #212A60 #313E8D #4152BA #6C7ACC

Accessibility & contrast

On white

9.53

#313E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#313E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E8D

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E8D	#FFFFFF	#000000	##FFFFFF
##313E8D	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034A90

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313e8d;
/* rgb */ color: rgb(49, 62, 141);
/* oklch */ color: oklch(40.0% 0.131 272.1);

Tailwind

colors: {
  custom: {
    50: '#7473af',
    500: '#313e8d',
    950: '#000000',
  },
}

SCSS

$custom: #313e8d;
$custom-light: #7473af;
$custom-dark: #000000;

JSON

{
  "hex": "#313e8d",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 141
  },
  "hsl": {
    "h": 231.522,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40011,
    "c": 0.13108,
    "h": 272.1
  },
  "luminance": 0.06021
}

Semantic roles & 50–950 ramp

primary

#313E8D

secondary

#B4A966

accent

#C550D8

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #313E8D

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

Preview Lab → · Contrast checker → · Palette generator →