#31349B#31349B

#31349B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.3% C 0.164 H 274.6°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#31349B
RGB	rgb(49, 52, 155)
HSL	hsl(238, 52%, 40%)
HSV	hsv(238, 68%, 61%)
CMYK	cmyk(68.4%, 66.5%, 0%, 39.2%)
CIE-LAB	lab(28.05, 32.94, -56.50)
CIE-LCH	lch(28.05, 65.40, 300.24°)
OKLab	oklab(39.32% 0.0132 -0.1631)
OKLCH	oklch(39.32% 0.164 274.6)
XYZ	xyz(8.4091, 5.4747, 31.6176)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31349B #9B9831

analogous

#31699B #31349B #63319B

triadic

#31349B #9B3134 #349B31

tetradic

#31349B #9B3169 #9B9831 #319B63

square

#31349B #9B3169 #9B9831 #319B63

split-complementary

#31349B #9B6331 #699B31

monochromatic

#14153E #22246D #31349B #4549C4 #7376D3

Accessibility & contrast

On white

10.02

#31349B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#31349B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31349B

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31349B	#FFFFFF	#000000	##FFFFFF
##31349B	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479E

Deuteranopia (green-blind)

#003D99

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #31349b;
/* rgb */ color: rgb(49, 52, 155);
/* oklch */ color: oklch(39.3% 0.164 274.6);

Tailwind

colors: {
  custom: {
    50: '#776cb9',
    500: '#31349b',
    950: '#000000',
  },
}

SCSS

$custom: #31349b;
$custom-light: #776cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#31349b",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 155
  },
  "hsl": {
    "h": 238.302,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.39323,
    "c": 0.1636,
    "h": 274.6
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#31349B

secondary

#BBB96D

accent

#D74CDB

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31349B

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

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