#31489E#31489E

#31489E is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.4% C 0.142 H 268.6°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#31489E
RGB	rgb(49, 72, 158)
HSL	hsl(227, 53%, 41%)
HSV	hsv(227, 69%, 62%)
CMYK	cmyk(69%, 54.4%, 0%, 38%)
CIE-LAB	lab(33.47, 20.86, -49.49)
CIE-LCH	lch(33.47, 53.71, 292.86°)
OKLab	oklab(43.42% -0.0036 -0.1423)
OKLCH	oklch(43.42% 0.142 268.6)
XYZ	xyz(9.7534, 7.7554, 33.3241)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31489E #9E8731

analogous

#317F9E #31489E #50319E

triadic

#31489E #9E3148 #489E31

tetradic

#31489E #9E317F #9E8731 #319E50

square

#31489E #9E317F #9E8731 #319E50

split-complementary

#31489E #9E5031 #7F9E31

monochromatic

#141D41 #23336F #31489E #4661C6 #7589D4

Accessibility & contrast

On white

8.23

#31489E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#31489E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31489E

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31489E	#FFFFFF	#000000	##FFFFFF
##31489E	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0954A1

Deuteranopia (green-blind)

#004A9C

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31489e;
/* rgb */ color: rgb(49, 72, 158);
/* oklch */ color: oklch(43.4% 0.142 268.6);

Tailwind

colors: {
  custom: {
    50: '#767abb',
    500: '#31489e',
    950: '#000000',
  },
}

SCSS

$custom: #31489e;
$custom-light: #767abb;
$custom-dark: #000000;

JSON

{
  "hex": "#31489e",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 158
  },
  "hsl": {
    "h": 227.339,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43422,
    "c": 0.14233,
    "h": 268.6
  },
  "luminance": 0.07756
}

Semantic roles & 50–950 ramp

primary

#31489E

secondary

#BCAC6E

accent

#BE4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #31489E

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

Preview Lab → · Contrast checker → · Palette generator →