#313D84#313D84

#313D84 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.1% C 0.119 H 272.5°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#313D84
RGB	rgb(49, 61, 132)
HSL	hsl(231, 46%, 35%)
HSV	hsv(231, 63%, 52%)
CMYK	cmyk(62.9%, 53.8%, 0%, 48.2%)
CIE-LAB	lab(28.53, 18.64, -41.55)
CIE-LCH	lch(28.53, 45.54, 294.16°)
OKLab	oklab(39.1% 0.0052 -0.1191)
OKLCH	oklch(39.1% 0.119 272.5)
XYZ	xyz(7.0988, 5.6558, 22.5429)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D84 #847831

analogous

#316684 #313D84 #4E3184

triadic

#313D84 #84313D #3D8431

tetradic

#313D84 #843166 #847831 #31844E

square

#313D84 #843166 #847831 #31844E

split-complementary

#313D84 #844E31 #668431

monochromatic

#10142B #202857 #313D84 #4252B1 #6876C7

Accessibility & contrast

On white

9.85

#313D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#313D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D84

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D84	#FFFFFF	#000000	##FFFFFF
##313D84	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134787

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313d84;
/* rgb */ color: rgb(49, 61, 132);
/* oklch */ color: oklch(39.1% 0.119 272.5);

Tailwind

colors: {
  custom: {
    50: '#7272a8',
    500: '#313d84',
    950: '#000000',
  },
}

SCSS

$custom: #313d84;
$custom-light: #7272a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313d84",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 132
  },
  "hsl": {
    "h": 231.325,
    "s": 45.856,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39096,
    "c": 0.11917,
    "h": 272.5
  },
  "luminance": 0.05656
}

Semantic roles & 50–950 ramp

primary

#313D84

secondary

#AEA362

accent

#C352D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #313D84

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

Preview Lab → · Contrast checker → · Palette generator →