#313F65#313F65

#313F65 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.068 H 267.7°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#313F65
RGB	rgb(49, 63, 101)
HSL	hsl(224, 35%, 29%)
HSV	hsv(224, 51%, 40%)
CMYK	cmyk(51.5%, 37.6%, 0%, 60.4%)
CIE-LAB	lab(27.15, 6.13, -24.13)
CIE-LCH	lch(27.15, 24.90, 284.26°)
OKLab	oklab(37.41% -0.0027 -0.068)
OKLCH	oklch(37.41% 0.068 267.7)
XYZ	xyz(5.3923, 5.1472, 13.0188)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F65 #655731

analogous

#315965 #313F65 #3D3165

triadic

#313F65 #65313F #3F6531

tetradic

#313F65 #653159 #655731 #31653D

square

#313F65 #653159 #655731 #31653D

split-complementary

#313F65 #653D31 #596531

monochromatic

#0A0D15 #1D253C #313F65 #45598E #5F75B1

Accessibility & contrast

On white

10.35

#313F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#313F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F65

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F65	#FFFFFF	#000000	##FFFFFF
##313F65	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314367

Deuteranopia (green-blind)

#2B3E64

Tritanopia (blue-blind)

#1C474D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313f65;
/* rgb */ color: rgb(49, 63, 101);
/* oklch */ color: oklch(37.4% 0.068 267.7);

Tailwind

colors: {
  custom: {
    50: '#6c7391',
    500: '#313f65',
    950: '#000000',
  },
}

SCSS

$custom: #313f65;
$custom-light: #6c7391;
$custom-dark: #000000;

JSON

{
  "hex": "#313f65",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 101
  },
  "hsl": {
    "h": 223.846,
    "s": 34.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37409,
    "c": 0.06803,
    "h": 267.7
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#313F65

secondary

#96865C

accent

#AD5DCB

background

#F6F7F8

surface

#ECEDF0

border

#C7C8CB

text

#07080C

muted

#7A7B7D

Preview Lab

Preview with #313F65

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

Preview Lab → · Contrast checker → · Palette generator →