#31487F#31487F

#31487F is a dark, moderate blue. Relative luminance 0.068; OKLCH L 41.2% C 0.097 H 265.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#31487F
RGB	rgb(49, 72, 127)
HSL	hsl(222, 44%, 35%)
HSV	hsv(222, 61%, 50%)
CMYK	cmyk(61.4%, 43.3%, 0%, 50.2%)
CIE-LAB	lab(31.39, 9.35, -33.84)
CIE-LCH	lch(31.39, 35.11, 285.45°)
OKLab	oklab(41.17% -0.0079 -0.0963)
OKLCH	oklch(41.17% 0.097 265.3)
XYZ	xyz(7.4134, 6.8194, 21.0002)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31487F #7F6831

analogous

#316F7F #31487F #41317F

triadic

#31487F #7F3148 #487F31

tetradic

#31487F #7F316F #7F6831 #317F41

square

#31487F #7F316F #7F6831 #317F41

split-complementary

#31487F #7F4131 #6F7F31

monochromatic

#0F1627 #202F53 #31487F #4261AB #6682C4

Accessibility & contrast

On white

8.88

#31487F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#31487F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31487F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31487F	#FFFFFF	#000000	##FFFFFF
##31487F	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304E81

Deuteranopia (green-blind)

#25477E

Tritanopia (blue-blind)

#00545D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31487f;
/* rgb */ color: rgb(49, 72, 127);
/* oklch */ color: oklch(41.2% 0.097 265.3);

Tailwind

colors: {
  custom: {
    50: '#707aa4',
    500: '#31487f',
    950: '#000000',
  },
}

SCSS

$custom: #31487f;
$custom-light: #707aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#31487f",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 127
  },
  "hsl": {
    "h": 222.308,
    "s": 44.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.41174,
    "c": 0.0966,
    "h": 265.3
  },
  "luminance": 0.0682
}

Semantic roles & 50–950 ramp

primary

#31487F

secondary

#AB9560

accent

#AE54D4

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #31487F

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

Preview Lab → · Contrast checker → · Palette generator →