#17557E#17557E

#17557E is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.2% C 0.091 H 242.8°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#17557E
RGB	rgb(23, 85, 126)
HSL	hsl(204, 69%, 29%)
HSV	hsv(204, 82%, 49%)
CMYK	cmyk(81.7%, 32.5%, 0%, 50.6%)
CIE-LAB	lab(34.36, -3.91, -28.58)
CIE-LCH	lch(34.36, 28.85, 262.21°)
OKLab	oklab(43.19% -0.0417 -0.0811)
OKLCH	oklch(43.19% 0.091 242.8)
XYZ	xyz(7.3663, 8.1846, 20.9262)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17557E #7E4017

analogous

#177E74 #17557E #17227E

triadic

#17557E #7E1755 #557E17

tetradic

#17557E #74177E #7E4017 #227E17

square

#17557E #74177E #7E4017 #227E17

split-complementary

#17557E #7E1722 #7E7417

monochromatic

#05111A #0E324A #17557E #2078B2 #3599DA

Accessibility & contrast

On white

7.96

#17557E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#17557E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17557E

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17557E	#FFFFFF	#000000	##FFFFFF
##17557E	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425680

Deuteranopia (green-blind)

#344D7D

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #17557e;
/* rgb */ color: rgb(23, 85, 126);
/* oklch */ color: oklch(43.2% 0.091 242.8);

Tailwind

colors: {
  custom: {
    50: '#6684a3',
    500: '#17557e',
    950: '#000000',
  },
}

SCSS

$custom: #17557e;
$custom-light: #6684a3;
$custom-dark: #000000;

JSON

{
  "hex": "#17557e",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 126
  },
  "hsl": {
    "h": 203.883,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.43192,
    "c": 0.09119,
    "h": 242.8
  },
  "luminance": 0.08186
}

Semantic roles & 50–950 ramp

primary

#17557E

secondary

#B36D3E

accent

#823CEC

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #17557E

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

Preview Lab → · Contrast checker → · Palette generator →