#031730#031730

#031730 is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.4% C 0.057 H 254.3°. Best body text is #FFFFFF at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#031730
RGB	rgb(3, 23, 48)
HSL	hsl(213, 88%, 10%)
HSV	hsv(213, 94%, 19%)
CMYK	cmyk(93.8%, 52.1%, 0%, 81.2%)
CIE-LAB	lab(7.64, 3.00, -19.06)
CIE-LCH	lch(7.64, 19.30, 278.94°)
OKLab	oklab(20.44% -0.0153 -0.0547)
OKLCH	oklch(20.44% 0.057 254.3)
XYZ	xyz(0.8772, 0.8454, 2.9127)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031730 #301C03

analogous

#032E30 #031730 #050330

triadic

#031730 #300317 #173003

tetradic

#031730 #30032E #301C03 #033005

square

#031730 #30032E #301C03 #033005

split-complementary

#031730 #300503 #2E3003

monochromatic

#020E1D #020E1D #031730 #07336A #0A4EA3

Accessibility & contrast

On white

17.96

#031730 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#031730 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031730

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031730	#FFFFFF	#000000	##FFFFFF
##031730	1.00	17.96	1.17	17.96
#FFFFFF	17.96	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A1931

Deuteranopia (green-blind)

#031530

Tritanopia (blue-blind)

#001D21

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #031730;
/* rgb */ color: rgb(3, 23, 48);
/* oklch */ color: oklch(20.4% 0.057 254.3);

Tailwind

colors: {
  custom: {
    50: '#4b5368',
    500: '#031730',
    950: '#000000',
  },
}

SCSS

$custom: #031730;
$custom-light: #4b5368;
$custom-dark: #000000;

JSON

{
  "hex": "#031730",
  "rgb": {
    "r": 3,
    "g": 23,
    "b": 48
  },
  "hsl": {
    "h": 213.333,
    "s": 88.235,
    "l": 10
  },
  "oklch": {
    "l": 0.20442,
    "c": 0.05677,
    "h": 254.3
  },
  "luminance": 0.00846
}

Semantic roles & 50–950 ramp

primary

#031730

secondary

#734C1B

accent

#A029FE

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #031730

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

Preview Lab → · Contrast checker → · Palette generator →