#31408E#31408E

#31408E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.5% C 0.130 H 271.3°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#31408E
RGB	rgb(49, 64, 142)
HSL	hsl(230, 49%, 37%)
HSV	hsv(230, 65%, 56%)
CMYK	cmyk(65.5%, 54.9%, 0%, 44.3%)
CIE-LAB	lab(30.09, 20.29, -45.21)
CIE-LCH	lch(30.09, 49.56, 294.17°)
OKLab	oklab(40.5% 0.0028 -0.1298)
OKLCH	oklch(40.5% 0.13 271.3)
XYZ	xyz(7.9809, 6.2721, 26.3760)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31408E #8E7F31

analogous

#316E8E #31408E #51318E

triadic

#31408E #8E3140 #408E31

tetradic

#31408E #8E316E #8E7F31 #318E51

square

#31408E #8E316E #8E7F31 #318E51

split-complementary

#31408E #8E5131 #6E8E31

monochromatic

#121733 #212B61 #31408E #4155BB #6D7CCD

Accessibility & contrast

On white

9.31

#31408E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#31408E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31408E

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31408E	#FFFFFF	#000000	##FFFFFF
##31408E	1.00	9.31	2.25	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4B91

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #31408e;
/* rgb */ color: rgb(49, 64, 142);
/* oklch */ color: oklch(40.5% 0.130 271.3);

Tailwind

colors: {
  custom: {
    50: '#7474b0',
    500: '#31408e',
    950: '#000000',
  },
}

SCSS

$custom: #31408e;
$custom-light: #7474b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31408e",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 142
  },
  "hsl": {
    "h": 230.323,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40504,
    "c": 0.12983,
    "h": 271.3
  },
  "luminance": 0.06273
}

Semantic roles & 50–950 ramp

primary

#31408E

secondary

#B4A867

accent

#C250D8

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31408E

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

Preview Lab → · Contrast checker → · Palette generator →