#31438F#31438F

#31438F is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.2% C 0.127 H 270.0°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#31438F
RGB	rgb(49, 67, 143)
HSL	hsl(229, 49%, 38%)
HSV	hsv(229, 66%, 56%)
CMYK	cmyk(65.7%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(31.00, 18.63, -44.36)
CIE-LCH	lch(31.00, 48.12, 292.79°)
OKLab	oklab(41.21% -0.0001 -0.1273)
OKLCH	oklch(41.21% 0.127 270)
XYZ	xyz(8.2300, 6.6497, 26.8311)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31438F #8F7D31

analogous

#31728F #31438F #4E318F

triadic

#31438F #8F3143 #438F31

tetradic

#31438F #8F3172 #8F7D31 #318F4E

square

#31438F #8F3172 #8F7D31 #318F4E

split-complementary

#31438F #8F4E31 #728F31

monochromatic

#121834 #212E61 #31438F #4158BD #6D80CD

Accessibility & contrast

On white

9.01

#31438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#31438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31438F

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31438F	#FFFFFF	#000000	##FFFFFF
##31438F	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154D92

Deuteranopia (green-blind)

#00458D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #31438f;
/* rgb */ color: rgb(49, 67, 143);
/* oklch */ color: oklch(41.2% 0.127 270.0);

Tailwind

colors: {
  custom: {
    50: '#7476b0',
    500: '#31438f',
    950: '#000000',
  },
}

SCSS

$custom: #31438f;
$custom-light: #7476b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31438f",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 228.511,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.41211,
    "c": 0.12726,
    "h": 270
  },
  "luminance": 0.0665
}

Semantic roles & 50–950 ramp

primary

#31438F

secondary

#B5A667

accent

#BE4FD9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31438F

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

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