#312FAF#312FAF

#312FAF is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.5% C 0.195 H 274.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#312FAF
RGB	rgb(49, 47, 175)
HSL	hsl(241, 58%, 44%)
HSV	hsv(241, 73%, 69%)
CMYK	cmyk(72%, 73.1%, 0%, 31.4%)
CIE-LAB	lab(28.85, 42.86, -67.25)
CIE-LCH	lch(28.85, 79.75, 302.51°)
OKLab	oklab(40.49% 0.0137 -0.1945)
OKLCH	oklch(40.49% 0.195 274)
XYZ	xyz(10.0184, 5.7802, 41.1368)
Luminance	0.0578 (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

#312FAF #ADAF2F

analogous

#2F6DAF #312FAF #712FAF

triadic

#312FAF #AF312F #2FAF31

tetradic

#312FAF #AF2F6D #ADAF2F #2FAF71

square

#312FAF #AF2F6D #ADAF2F #2FAF71

split-complementary

#312FAF #AF712F #6DAF2F

monochromatic

#16154F #23227F #312FAF #4E4CCF #7E7CDC

Accessibility & contrast

On white

9.74

#312FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#312FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FAF

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FAF	#FFFFFF	#000000	##FFFFFF
##312FAF	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB3

Deuteranopia (green-blind)

#003EAD

Tritanopia (blue-blind)

#00536C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312faf;
/* rgb */ color: rgb(49, 47, 175);
/* oklch */ color: oklch(40.5% 0.195 274.0);

Tailwind

colors: {
  custom: {
    50: '#7c69c8',
    500: '#312faf',
    950: '#000000',
  },
}

SCSS

$custom: #312faf;
$custom-light: #7c69c8;
$custom-dark: #000000;

JSON

{
  "hex": "#312faf",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 175
  },
  "hsl": {
    "h": 240.938,
    "s": 57.658,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40485,
    "c": 0.19499,
    "h": 274
  },
  "luminance": 0.05781
}

Semantic roles & 50–950 ramp

primary

#312FAF

secondary

#C3C475

accent

#E147DE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312FAF

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

Preview Lab → · Contrast checker → · Palette generator →