#31306D#31306D

#31306D is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.6% C 0.103 H 280.3°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#31306D
RGB	rgb(49, 48, 109)
HSL	hsl(241, 39%, 31%)
HSV	hsv(241, 56%, 43%)
CMYK	cmyk(55%, 56%, 0%, 57.3%)
CIE-LAB	lab(23.24, 19.24, -35.51)
CIE-LCH	lch(23.24, 40.39, 298.45°)
OKLab	oklab(34.6% 0.0184 -0.1014)
OKLCH	oklch(34.6% 0.103 280.3)
XYZ	xyz(5.0830, 3.8707, 14.9443)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31306D #6C6D30

analogous

#304D6D #31306D #4F306D

triadic

#31306D #6D3130 #306D31

tetradic

#31306D #6D304D #6C6D30 #306D4F

square

#31306D #6D304D #6C6D30 #306D4F

split-complementary

#31306D #6D4F30 #4D6D30

monochromatic

#0B0B18 #1E1D43 #31306D #444397 #605FB8

Accessibility & contrast

On white

11.84

#31306D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#31306D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31306D

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31306D	#FFFFFF	#000000	##FFFFFF
##31306D	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3A6F

Deuteranopia (green-blind)

#06356C

Tritanopia (blue-blind)

#183E49

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #31306d;
/* rgb */ color: rgb(49, 48, 109);
/* oklch */ color: oklch(34.6% 0.103 280.3);

Tailwind

colors: {
  custom: {
    50: '#6e6897',
    500: '#31306d',
    950: '#000000',
  },
}

SCSS

$custom: #31306d;
$custom-light: #6e6897;
$custom-dark: #000000;

JSON

{
  "hex": "#31306d",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 109
  },
  "hsl": {
    "h": 240.984,
    "s": 38.854,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34595,
    "c": 0.1031,
    "h": 280.3
  },
  "luminance": 0.03871
}

Semantic roles & 50–950 ramp

primary

#31306D

secondary

#9D9E5B

accent

#CF59CD

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060D

muted

#7B7A7E

Preview Lab

Preview with #31306D

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

Preview Lab → · Contrast checker → · Palette generator →