#312FAE#312FAE

#312FAE is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.4% C 0.194 H 274.1°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#312FAE
RGB	rgb(49, 47, 174)
HSL	hsl(241, 57%, 43%)
HSV	hsv(241, 73%, 68%)
CMYK	cmyk(71.8%, 73%, 0%, 31.8%)
CIE-LAB	lab(28.75, 42.53, -66.82)
CIE-LCH	lch(28.75, 79.21, 302.48°)
OKLab	oklab(40.38% 0.0139 -0.1932)
OKLCH	oklch(40.38% 0.194 274.1)
XYZ	xyz(9.9206, 5.7410, 40.6215)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FAE #ACAE2F

analogous

#2F6CAE #312FAE #702FAE

triadic

#312FAE #AE312F #2FAE31

tetradic

#312FAE #AE2F6C #ACAE2F #2FAE70

square

#312FAE #AE2F6C #ACAE2F #2FAE70

split-complementary

#312FAE #AE702F #6CAE2F

monochromatic

#16154E #23227E #312FAE #4E4CCF #7D7CDC

Accessibility & contrast

On white

9.77

#312FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#312FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FAE

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FAE	#FFFFFF	#000000	##FFFFFF
##312FAE	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB2

Deuteranopia (green-blind)

#003EAC

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312fae;
/* rgb */ color: rgb(49, 47, 174);
/* oklch */ color: oklch(40.4% 0.194 274.1);

Tailwind

colors: {
  custom: {
    50: '#7c69c7',
    500: '#312fae',
    950: '#000000',
  },
}

SCSS

$custom: #312fae;
$custom-light: #7c69c7;
$custom-dark: #000000;

JSON

{
  "hex": "#312fae",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 174
  },
  "hsl": {
    "h": 240.945,
    "s": 57.466,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40382,
    "c": 0.19375,
    "h": 274.1
  },
  "luminance": 0.05742
}

Semantic roles & 50–950 ramp

primary

#312FAE

secondary

#C3C475

accent

#E147DE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312FAE

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

Preview Lab → · Contrast checker → · Palette generator →