#313D7E#313D7E

#313D7E is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.6% C 0.110 H 272.4°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#313D7E
RGB	rgb(49, 61, 126)
HSL	hsl(231, 44%, 34%)
HSV	hsv(231, 61%, 49%)
CMYK	cmyk(61.1%, 51.6%, 0%, 50.6%)
CIE-LAB	lab(28.10, 16.44, -38.48)
CIE-LCH	lch(28.10, 41.84, 293.13°)
OKLab	oklab(38.64% 0.0046 -0.11)
OKLCH	oklch(38.64% 0.11 272.4)
XYZ	xyz(6.7000, 5.4963, 20.4424)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D7E #7E7231

analogous

#31647E #313D7E #4C317E

triadic

#313D7E #7E313D #3D7E31

tetradic

#313D7E #7E3164 #7E7231 #317E4C

square

#313D7E #7E3164 #7E7231 #317E4C

split-complementary

#313D7E #7E4C31 #647E31

monochromatic

#0F1226 #202852 #313D7E #4252AA #6675C3

Accessibility & contrast

On white

10.00

#313D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D7E

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D7E	#FFFFFF	#000000	##FFFFFF
##313D7E	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4680

Deuteranopia (green-blind)

#0D3F7D

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313d7e;
/* rgb */ color: rgb(49, 61, 126);
/* oklch */ color: oklch(38.6% 0.110 272.4);

Tailwind

colors: {
  custom: {
    50: '#7172a4',
    500: '#313d7e',
    950: '#000000',
  },
}

SCSS

$custom: #313d7e;
$custom-light: #7172a4;
$custom-dark: #000000;

JSON

{
  "hex": "#313d7e",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 126
  },
  "hsl": {
    "h": 230.649,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38642,
    "c": 0.11013,
    "h": 272.4
  },
  "luminance": 0.05497
}

Semantic roles & 50–950 ramp

primary

#313D7E

secondary

#AB9F60

accent

#C054D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313D7E

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

Preview Lab → · Contrast checker → · Palette generator →