#313C7E#313C7E

#313C7E is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.4% C 0.112 H 272.9°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#313C7E
RGB	rgb(49, 60, 126)
HSL	hsl(231, 44%, 34%)
HSV	hsv(231, 61%, 49%)
CMYK	cmyk(61.1%, 52.4%, 0%, 50.6%)
CIE-LAB	lab(27.82, 17.12, -38.94)
CIE-LCH	lch(27.82, 42.54, 293.74°)
OKLab	oklab(38.43% 0.0057 -0.1114)
OKLCH	oklch(38.43% 0.112 272.9)
XYZ	xyz(6.6471, 5.3905, 20.4248)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C7E #7E7331

analogous

#31637E #313C7E #4D317E

triadic

#313C7E #7E313C #3C7E31

tetradic

#313C7E #7E3163 #7E7331 #317E4D

square

#313C7E #7E3163 #7E7331 #317E4D

split-complementary

#313C7E #7E4D31 #637E31

monochromatic

#0F1226 #202752 #313C7E #4251AA #6673C3

Accessibility & contrast

On white

10.10

#313C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#313C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C7E

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C7E	#FFFFFF	#000000	##FFFFFF
##313C7E	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194580

Deuteranopia (green-blind)

#093E7D

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313c7e;
/* rgb */ color: rgb(49, 60, 126);
/* oklch */ color: oklch(38.4% 0.112 272.9);

Tailwind

colors: {
  custom: {
    50: '#7171a4',
    500: '#313c7e',
    950: '#000000',
  },
}

SCSS

$custom: #313c7e;
$custom-light: #7171a4;
$custom-dark: #000000;

JSON

{
  "hex": "#313c7e",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 126
  },
  "hsl": {
    "h": 231.429,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38426,
    "c": 0.11154,
    "h": 272.9
  },
  "luminance": 0.05391
}

Semantic roles & 50–950 ramp

primary

#313C7E

secondary

#ABA060

accent

#C154D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313C7E

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

Preview Lab → · Contrast checker → · Palette generator →