#313E85#313E85

#313E85 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.4% C 0.119 H 272.0°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#313E85
RGB	rgb(49, 62, 133)
HSL	hsl(231, 46%, 36%)
HSV	hsv(231, 63%, 52%)
CMYK	cmyk(63.2%, 53.4%, 0%, 47.8%)
CIE-LAB	lab(28.88, 18.33, -41.60)
CIE-LCH	lch(28.88, 45.46, 293.77°)
OKLab	oklab(39.39% 0.0042 -0.1192)
OKLCH	oklch(39.39% 0.119 272)
XYZ	xyz(7.2215, 5.7911, 22.9230)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E85 #857831

analogous

#316885 #313E85 #4E3185

triadic

#313E85 #85313E #3E8531

tetradic

#313E85 #853168 #857831 #31854E

square

#313E85 #853168 #857831 #31854E

split-complementary

#313E85 #854E31 #688531

monochromatic

#10142C #212958 #313E85 #4153B2 #6977C8

Accessibility & contrast

On white

9.73

#313E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#313E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E85

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E85	#FFFFFF	#000000	##FFFFFF
##313E85	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154888

Deuteranopia (green-blind)

#004184

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #313e85;
/* rgb */ color: rgb(49, 62, 133);
/* oklch */ color: oklch(39.4% 0.119 272.0);

Tailwind

colors: {
  custom: {
    50: '#7273a9',
    500: '#313e85',
    950: '#000000',
  },
}

SCSS

$custom: #313e85;
$custom-light: #7273a9;
$custom-dark: #000000;

JSON

{
  "hex": "#313e85",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 133
  },
  "hsl": {
    "h": 230.714,
    "s": 46.154,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39385,
    "c": 0.11927,
    "h": 272
  },
  "luminance": 0.05792
}

Semantic roles & 50–950 ramp

primary

#313E85

secondary

#AFA363

accent

#C152D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #313E85

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

Preview Lab → · Contrast checker → · Palette generator →