#312D64#312D64

#312D64 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.094 H 283.3°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#312D64
RGB	rgb(49, 45, 100)
HSL	hsl(244, 38%, 28%)
HSV	hsv(244, 55%, 39%)
CMYK	cmyk(51%, 55%, 0%, 60.8%)
CIE-LAB	lab(21.76, 18.18, -32.05)
CIE-LCH	lch(21.76, 36.85, 299.56°)
OKLab	oklab(33.28% 0.0216 -0.0913)
OKLCH	oklch(33.28% 0.094 283.3)
XYZ	xyz(4.5046, 3.4496, 12.4826)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D64 #60642D

analogous

#2D4464 #312D64 #4C2D64

triadic

#312D64 #64312D #2D6431

tetradic

#312D64 #642D44 #60642D #2D644C

square

#312D64 #642D44 #60642D #2D644C

split-complementary

#312D64 #644C2D #44642D

monochromatic

#0A0915 #1C1A3A #312D64 #46408E #5E58B4

Accessibility & contrast

On white

12.43

#312D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#312D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D64

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D64	#FFFFFF	#000000	##FFFFFF
##312D64	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123666

Deuteranopia (green-blind)

#0F3263

Tritanopia (blue-blind)

#1F3944

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #312d64;
/* rgb */ color: rgb(49, 45, 100);
/* oklch */ color: oklch(33.3% 0.094 283.3);

Tailwind

colors: {
  custom: {
    50: '#6d6690',
    500: '#312d64',
    950: '#000000',
  },
}

SCSS

$custom: #312d64;
$custom-light: #6d6690;
$custom-dark: #000000;

JSON

{
  "hex": "#312d64",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 100
  },
  "hsl": {
    "h": 244.364,
    "s": 37.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33282,
    "c": 0.09382,
    "h": 283.3
  },
  "luminance": 0.0345
}

Semantic roles & 50–950 ramp

primary

#312D64

secondary

#919657

accent

#CE5AC5

background

#F6F6F8

surface

#ECEBF0

border

#C7C6CB

text

#07050C

muted

#7A7A7D

Preview Lab

Preview with #312D64

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

Preview Lab → · Contrast checker → · Palette generator →