#17313B#17313B

#17313B is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.7% C 0.037 H 225.2°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#17313B
RGB	rgb(23, 49, 59)
HSL	hsl(197, 44%, 16%)
HSV	hsv(197, 61%, 23%)
CMYK	cmyk(61%, 16.9%, 0%, 76.9%)
CIE-LAB	lab(18.78, -6.53, -9.39)
CIE-LCH	lch(18.78, 11.43, 235.19°)
OKLab	oklab(29.72% -0.0259 -0.026)
OKLCH	oklch(29.72% 0.037 225.2)
XYZ	xyz(2.2408, 2.6944, 4.5388)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17313B #3B2117

analogous

#173B33 #17313B #171F3B

triadic

#17313B #3B1731 #313B17

tetradic

#17313B #33173B #3B2117 #1F3B17

square

#17313B #33173B #3B2117 #1F3B17

split-complementary

#17313B #3B171F #3B3317

monochromatic

#091216 #091216 #17313B #285667 #397A93

Accessibility & contrast

On white

13.65

#17313B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#17313B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17313B

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17313B	#FFFFFF	#000000	##FFFFFF
##17313B	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C303C

Deuteranopia (green-blind)

#262C3B

Tritanopia (blue-blind)

#023434

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #17313b;
/* rgb */ color: rgb(23, 49, 59);
/* oklch */ color: oklch(29.7% 0.037 225.2);

Tailwind

colors: {
  custom: {
    50: '#576971',
    500: '#17313b',
    950: '#000000',
  },
}

SCSS

$custom: #17313b;
$custom-light: #576971;
$custom-dark: #000000;

JSON

{
  "hex": "#17313b",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 59
  },
  "hsl": {
    "h": 196.667,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.29715,
    "c": 0.03671,
    "h": 225.2
  },
  "luminance": 0.02695
}

Semantic roles & 50–950 ramp

primary

#17313B

secondary

#724B3C

accent

#7854D4

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #17313B

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

Preview Lab → · Contrast checker → · Palette generator →