#312E9F#312E9F

#312E9F is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.7% C 0.176 H 275.5°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#312E9F
RGB	rgb(49, 46, 159)
HSL	hsl(242, 55%, 40%)
HSV	hsv(242, 71%, 62%)
CMYK	cmyk(69.2%, 71.1%, 0%, 37.6%)
CIE-LAB	lab(27.04, 38.06, -60.58)
CIE-LCH	lch(27.04, 71.54, 302.14°)
OKLab	oklab(38.71% 0.017 -0.175)
OKLCH	oklch(38.71% 0.176 275.5)
XYZ	xyz(8.4996, 5.1094, 33.3325)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312E9F #9C9F2E

analogous

#2E639F #312E9F #692E9F

triadic

#312E9F #9F312E #2E9F31

tetradic

#312E9F #9F2E63 #9C9F2E #2E9F69

square

#312E9F #9F2E63 #9C9F2E #2E9F69

split-complementary

#312E9F #9F692E #639F2E

monochromatic

#141340 #222070 #312E9F #4542C8 #7471D6

Accessibility & contrast

On white

10.39

#312E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#312E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312E9F

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312E9F	#FFFFFF	#000000	##FFFFFF
##312E9F	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A2

Deuteranopia (green-blind)

#003B9D

Tritanopia (blue-blind)

#004D63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #312e9f;
/* rgb */ color: rgb(49, 46, 159);
/* oklch */ color: oklch(38.7% 0.176 275.5);

Tailwind

colors: {
  custom: {
    50: '#7968bc',
    500: '#312e9f',
    950: '#000000',
  },
}

SCSS

$custom: #312e9f;
$custom-light: #7968bc;
$custom-dark: #000000;

JSON

{
  "hex": "#312e9f",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 159
  },
  "hsl": {
    "h": 241.593,
    "s": 55.122,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38713,
    "c": 0.17584,
    "h": 275.5
  },
  "luminance": 0.0511
}

Semantic roles & 50–950 ramp

primary

#312E9F

secondary

#BBBE6B

accent

#DE49DA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312E9F

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

Preview Lab → · Contrast checker → · Palette generator →