#313AA7#313AA7

#313AA7 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.172 H 272.6°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#313AA7
RGB	rgb(49, 58, 167)
HSL	hsl(235, 55%, 42%)
HSV	hsv(235, 71%, 65%)
CMYK	cmyk(70.7%, 65.3%, 0%, 34.5%)
CIE-LAB	lab(30.56, 33.37, -59.64)
CIE-LCH	lch(30.56, 68.34, 299.23°)
OKLab	oklab(41.49% 0.0078 -0.1722)
OKLCH	oklch(41.49% 0.172 272.6)
XYZ	xyz(9.7524, 6.4682, 37.2862)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313AA7 #A79E31

analogous

#3175A7 #313AA7 #6331A7

triadic

#313AA7 #A7313A #3AA731

tetradic

#313AA7 #A73175 #A79E31 #31A763

square

#313AA7 #A73175 #A79E31 #31A763

split-complementary

#313AA7 #A76331 #75A731

monochromatic

#151948 #232A78 #313AA7 #4B55CA #7A81D8

Accessibility & contrast

On white

9.16

#313AA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#313AA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AA7

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AA7	#FFFFFF	#000000	##FFFFFF
##313AA7	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAA

Deuteranopia (green-blind)

#0043A5

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313aa7;
/* rgb */ color: rgb(49, 58, 167);
/* oklch */ color: oklch(41.5% 0.172 272.6);

Tailwind

colors: {
  custom: {
    50: '#7a70c2',
    500: '#313aa7',
    950: '#000000',
  },
}

SCSS

$custom: #313aa7;
$custom-light: #7a70c2;
$custom-dark: #000000;

JSON

{
  "hex": "#313aa7",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 167
  },
  "hsl": {
    "h": 235.424,
    "s": 54.63,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41491,
    "c": 0.17243,
    "h": 272.6
  },
  "luminance": 0.06469
}

Semantic roles & 50–950 ramp

primary

#313AA7

secondary

#C1BB73

accent

#D34ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313AA7

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

Preview Lab → · Contrast checker → · Palette generator →