#312E71#312E71

#312E71 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.5% C 0.112 H 280.8°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#312E71
RGB	rgb(49, 46, 113)
HSL	hsl(243, 42%, 31%)
HSV	hsv(243, 59%, 44%)
CMYK	cmyk(56.6%, 59.3%, 0%, 55.7%)
CIE-LAB	lab(23.00, 22.01, -38.48)
CIE-LCH	lch(23.00, 44.33, 299.77°)
OKLab	oklab(34.51% 0.021 -0.1102)
OKLCH	oklch(34.51% 0.112 280.8)
XYZ	xyz(5.2233, 3.7989, 16.0776)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312E71 #6E712E

analogous

#2E4C71 #312E71 #522E71

triadic

#312E71 #71312E #2E7131

tetradic

#312E71 #712E4C #6E712E #2E7152

square

#312E71 #712E4C #6E712E #2E7152

split-complementary

#312E71 #71522E #4C712E

monochromatic

#0B0B1A #1E1C46 #312E71 #44409C #615DBD

Accessibility & contrast

On white

11.93

#312E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#312E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312E71

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312E71	#FFFFFF	#000000	##FFFFFF
##312E71	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003973

Deuteranopia (green-blind)

#003470

Tritanopia (blue-blind)

#143D4A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #312e71;
/* rgb */ color: rgb(49, 46, 113);
/* oklch */ color: oklch(34.5% 0.112 280.8);

Tailwind

colors: {
  custom: {
    50: '#6f669a',
    500: '#312e71',
    950: '#000000',
  },
}

SCSS

$custom: #312e71;
$custom-light: #6f669a;
$custom-dark: #000000;

JSON

{
  "hex": "#312e71",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 113
  },
  "hsl": {
    "h": 242.687,
    "s": 42.138,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34508,
    "c": 0.11215,
    "h": 280.8
  },
  "luminance": 0.03799
}

Semantic roles & 50–950 ramp

primary

#312E71

secondary

#9FA258

accent

#D256CC

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #312E71

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

Preview Lab → · Contrast checker → · Palette generator →