#31458C#31458C

#31458C is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.4% C 0.120 H 268.8°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#31458C
RGB	rgb(49, 69, 140)
HSL	hsl(227, 48%, 37%)
HSV	hsv(227, 65%, 55%)
CMYK	cmyk(65%, 50.7%, 0%, 45.1%)
CIE-LAB	lab(31.35, 16.17, -41.94)
CIE-LCH	lch(31.35, 44.95, 291.08°)
OKLab	oklab(41.41% -0.0024 -0.1201)
OKLCH	oklch(41.41% 0.12 268.8)
XYZ	xyz(8.1268, 6.8019, 25.6905)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31458C #8C7831

analogous

#31738C #31458C #4B318C

triadic

#31458C #8C3145 #458C31

tetradic

#31458C #8C3173 #8C7831 #318C4B

square

#31458C #8C3173 #8C7831 #318C4B

split-complementary

#31458C #8C4B31 #738C31

monochromatic

#111831 #212F5F #31458C #415BB9 #6C81CC

Accessibility & contrast

On white

8.90

#31458C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#31458C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31458C

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31458C	#FFFFFF	#000000	##FFFFFF
##31458C	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8F

Deuteranopia (green-blind)

#09468B

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31458c;
/* rgb */ color: rgb(49, 69, 140);
/* oklch */ color: oklch(41.4% 0.120 268.8);

Tailwind

colors: {
  custom: {
    50: '#7378ae',
    500: '#31458c',
    950: '#000000',
  },
}

SCSS

$custom: #31458c;
$custom-light: #7378ae;
$custom-dark: #000000;

JSON

{
  "hex": "#31458c",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 140
  },
  "hsl": {
    "h": 226.813,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41413,
    "c": 0.12014,
    "h": 268.8
  },
  "luminance": 0.06803
}

Semantic roles & 50–950 ramp

primary

#31458C

secondary

#B3A266

accent

#BA50D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31458C

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

Preview Lab → · Contrast checker → · Palette generator →