#10343D#10343D

#10343D is a dark, muted cyan. Relative luminance 0.029; OKLCH L 30.4% C 0.043 H 217.2°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#10343D
RGB	rgb(16, 52, 61)
HSL	hsl(192, 58%, 15%)
HSV	hsv(192, 74%, 24%)
CMYK	cmyk(73.8%, 14.8%, 0%, 76.1%)
CIE-LAB	lab(19.65, -9.39, -9.45)
CIE-LCH	lch(19.65, 13.32, 225.19°)
OKLab	oklab(30.36% -0.0346 -0.0263)
OKLCH	oklch(30.36% 0.043 217.2)
XYZ	xyz(2.2836, 2.9028, 4.8539)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10343D #3D1910

analogous

#103D2F #10343D #101D3D

triadic

#10343D #3D1034 #343D10

tetradic

#10343D #2F103D #3D1910 #1D3D10

square

#10343D #2F103D #3D1910 #1D3D10

split-complementary

#10343D #3D101D #3D2F10

monochromatic

#061518 #061518 #10343D #1D5D6D #29879E

Accessibility & contrast

On white

13.29

#10343D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#10343D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10343D

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10343D	#FFFFFF	#000000	##FFFFFF
##10343D	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E323E

Deuteranopia (green-blind)

#282D3D

Tritanopia (blue-blind)

#003737

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #10343d;
/* rgb */ color: rgb(16, 52, 61);
/* oklch */ color: oklch(30.4% 0.043 217.2);

Tailwind

colors: {
  custom: {
    50: '#556b72',
    500: '#10343d',
    950: '#000000',
  },
}

SCSS

$custom: #10343d;
$custom-light: #556b72;
$custom-dark: #000000;

JSON

{
  "hex": "#10343d",
  "rgb": {
    "r": 16,
    "g": 52,
    "b": 61
  },
  "hsl": {
    "h": 192,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.3036,
    "c": 0.04349,
    "h": 217.2
  },
  "luminance": 0.02903
}

Semantic roles & 50–950 ramp

primary

#10343D

secondary

#774032

accent

#6546E2

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #10343D

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

Preview Lab → · Contrast checker → · Palette generator →