#313A7E#313A7E

#313A7E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 38.0% C 0.114 H 274.0°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#313A7E
RGB	rgb(49, 58, 126)
HSL	hsl(233, 44%, 34%)
HSV	hsv(233, 61%, 49%)
CMYK	cmyk(61.1%, 54%, 0%, 50.6%)
CIE-LAB	lab(27.26, 18.49, -39.85)
CIE-LCH	lch(27.26, 43.93, 294.89°)
OKLab	oklab(38% 0.0079 -0.1141)
OKLCH	oklch(38% 0.114 274)
XYZ	xyz(6.5443, 5.1849, 20.3905)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A7E #7E7531

analogous

#31617E #313A7E #4F317E

triadic

#313A7E #7E313A #3A7E31

tetradic

#313A7E #7E3161 #7E7531 #317E4F

square

#313A7E #7E3161 #7E7531 #317E4F

split-complementary

#313A7E #7E4F31 #617E31

monochromatic

#0F1126 #202652 #313A7E #424EAA #6671C3

Accessibility & contrast

On white

10.31

#313A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#313A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A7E

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A7E	#FFFFFF	#000000	##FFFFFF
##313A7E	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134480

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313a7e;
/* rgb */ color: rgb(49, 58, 126);
/* oklch */ color: oklch(38.0% 0.114 274.0);

Tailwind

colors: {
  custom: {
    50: '#7170a4',
    500: '#313a7e',
    950: '#000000',
  },
}

SCSS

$custom: #313a7e;
$custom-light: #7170a4;
$custom-dark: #000000;

JSON

{
  "hex": "#313a7e",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 126
  },
  "hsl": {
    "h": 232.987,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38001,
    "c": 0.11437,
    "h": 274
  },
  "luminance": 0.05185
}

Semantic roles & 50–950 ramp

primary

#313A7E

secondary

#ABA260

accent

#C554D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313A7E

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

Preview Lab → · Contrast checker → · Palette generator →