#31559F#31559F

#31559F is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.3% C 0.127 H 262.9°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#31559F
RGB	rgb(49, 85, 159)
HSL	hsl(220, 53%, 41%)
HSV	hsv(220, 69%, 62%)
CMYK	cmyk(69.2%, 46.5%, 0%, 37.6%)
CIE-LAB	lab(37.21, 12.60, -44.06)
CIE-LCH	lch(37.21, 45.83, 285.96°)
OKLab	oklab(46.29% -0.0157 -0.1261)
OKLCH	oklch(46.29% 0.127 262.9)
XYZ	xyz(10.7709, 9.6521, 34.0896)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31559F #9F7B31

analogous

#318C9F #31559F #44319F

triadic

#31559F #9F3155 #559F31

tetradic

#31559F #9F318C #9F7B31 #319F44

square

#31559F #9F318C #9F7B31 #319F44

split-complementary

#31559F #9F4431 #8C9F31

monochromatic

#142341 #233C70 #31559F #4771C6 #7695D5

Accessibility & contrast

On white

7.17

#31559F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#31559F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31559F

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31559F	#FFFFFF	#000000	##FFFFFF
##31559F	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305DA2

Deuteranopia (green-blind)

#1A539D

Tritanopia (blue-blind)

#006672

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #31559f;
/* rgb */ color: rgb(49, 85, 159);
/* oklch */ color: oklch(46.3% 0.127 262.9);

Tailwind

colors: {
  custom: {
    50: '#7684bc',
    500: '#31559f',
    950: '#000000',
  },
}

SCSS

$custom: #31559f;
$custom-light: #7684bc;
$custom-dark: #000000;

JSON

{
  "hex": "#31559f",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 159
  },
  "hsl": {
    "h": 220.364,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.46292,
    "c": 0.12709,
    "h": 262.9
  },
  "luminance": 0.09653
}

Semantic roles & 50–950 ramp

primary

#31559F

secondary

#BDA36F

accent

#AD4CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #31559F

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

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