#313F7E#313F7E

#313F7E is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.1% C 0.107 H 271.2°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#313F7E
RGB	rgb(49, 63, 126)
HSL	hsl(229, 44%, 34%)
HSV	hsv(229, 61%, 49%)
CMYK	cmyk(61.1%, 50%, 0%, 50.6%)
CIE-LAB	lab(28.68, 15.08, -37.56)
CIE-LCH	lch(28.68, 40.47, 291.87°)
OKLab	oklab(39.08% 0.0023 -0.1073)
OKLCH	oklch(39.08% 0.107 271.2)
XYZ	xyz(6.8088, 5.7138, 20.4787)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F7E #7E7031

analogous

#31667E #313F7E #4A317E

triadic

#313F7E #7E313F #3F7E31

tetradic

#313F7E #7E3166 #7E7031 #317E4A

square

#313F7E #7E3166 #7E7031 #317E4A

split-complementary

#313F7E #7E4A31 #667E31

monochromatic

#0F1326 #202952 #313F7E #4255AA #6677C3

Accessibility & contrast

On white

9.80

#313F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#313F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F7E

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F7E	#FFFFFF	#000000	##FFFFFF
##313F7E	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204780

Deuteranopia (green-blind)

#13407D

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #313f7e;
/* rgb */ color: rgb(49, 63, 126);
/* oklch */ color: oklch(39.1% 0.107 271.2);

Tailwind

colors: {
  custom: {
    50: '#7173a4',
    500: '#313f7e',
    950: '#000000',
  },
}

SCSS

$custom: #313f7e;
$custom-light: #7173a4;
$custom-dark: #000000;

JSON

{
  "hex": "#313f7e",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 126
  },
  "hsl": {
    "h": 229.091,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39077,
    "c": 0.10732,
    "h": 271.2
  },
  "luminance": 0.05714
}

Semantic roles & 50–950 ramp

primary

#313F7E

secondary

#AB9D60

accent

#BD54D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #313F7E

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

Preview Lab → · Contrast checker → · Palette generator →