#31455B#31455B

#31455B is a dark, muted cyan. Relative luminance 0.057; OKLCH L 38.3% C 0.045 H 251.4°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#31455B
RGB	rgb(49, 69, 91)
HSL	hsl(211, 30%, 27%)
HSV	hsv(211, 46%, 36%)
CMYK	cmyk(46.2%, 24.2%, 0%, 64.3%)
CIE-LAB	lab(28.55, -1.21, -15.52)
CIE-LCH	lch(28.55, 15.56, 265.54°)
OKLab	oklab(38.34% -0.0145 -0.0431)
OKLCH	oklch(38.34% 0.045 251.4)
XYZ	xyz(5.2824, 5.6642, 10.7105)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31455B #5B4731

analogous

#315A5B #31455B #32315B

triadic

#31455B #5B3145 #455B31

tetradic

#31455B #5B315A #5B4731 #315B32

square

#31455B #5B315A #5B4731 #315B32

split-complementary

#31455B #5B3231 #5A5B31

monochromatic

#0B0F14 #1C2733 #31455B #466383 #5E81A8

Accessibility & contrast

On white

9.85

#31455B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#31455B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31455B

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31455B	#FFFFFF	#000000	##FFFFFF
##31455B	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C465C

Deuteranopia (green-blind)

#37415B

Tritanopia (blue-blind)

#214A4C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #31455b;
/* rgb */ color: rgb(49, 69, 91);
/* oklch */ color: oklch(38.3% 0.045 251.4);

Tailwind

colors: {
  custom: {
    50: '#6b7889',
    500: '#31455b',
    950: '#000000',
  },
}

SCSS

$custom: #31455b;
$custom-light: #6b7889;
$custom-dark: #000000;

JSON

{
  "hex": "#31455b",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 91
  },
  "hsl": {
    "h": 211.429,
    "s": 30,
    "l": 27.451
  },
  "oklch": {
    "l": 0.38336,
    "c": 0.04549,
    "h": 251.4
  },
  "luminance": 0.05665
}

Semantic roles & 50–950 ramp

primary

#31455B

secondary

#8C755C

accent

#9662C6

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#07090B

muted

#7A7B7C

Preview Lab

Preview with #31455B

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

Preview Lab → · Contrast checker → · Palette generator →