#31347F#31347F

#31347F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.124 H 276.7°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#31347F
RGB	rgb(49, 52, 127)
HSL	hsl(238, 44%, 35%)
HSV	hsv(238, 61%, 50%)
CMYK	cmyk(61.4%, 59.1%, 0%, 50.2%)
CIE-LAB	lab(25.69, 22.93, -43.01)
CIE-LCH	lch(25.69, 48.74, 298.06°)
OKLab	oklab(36.85% 0.0145 -0.1235)
OKLCH	oklch(36.85% 0.124 276.7)
XYZ	xyz(6.3241, 4.6408, 20.6371)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31347F #7F7C31

analogous

#315B7F #31347F #55317F

triadic

#31347F #7F3134 #347F31

tetradic

#31347F #7F315B #7F7C31 #317F55

square

#31347F #7F315B #7F7C31 #317F55

split-complementary

#31347F #7F5531 #5B7F31

monochromatic

#0F1027 #202253 #31347F #4246AB #666AC4

Accessibility & contrast

On white

10.89

#31347F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#31347F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31347F

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31347F	#FFFFFF	#000000	##FFFFFF
##31347F	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004082

Deuteranopia (green-blind)

#003A7D

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31347f;
/* rgb */ color: rgb(49, 52, 127);
/* oklch */ color: oklch(36.9% 0.124 276.7);

Tailwind

colors: {
  custom: {
    50: '#716ba5',
    500: '#31347f',
    950: '#000000',
  },
}

SCSS

$custom: #31347f;
$custom-light: #716ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#31347f",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 127
  },
  "hsl": {
    "h": 237.692,
    "s": 44.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36851,
    "c": 0.12432,
    "h": 276.7
  },
  "luminance": 0.04641
}

Semantic roles & 50–950 ramp

primary

#31347F

secondary

#ABA960

accent

#CF54D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31347F

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

Preview Lab → · Contrast checker → · Palette generator →