#17557F#17557F

#17557F is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.3% C 0.092 H 243.4°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#17557F
RGB	rgb(23, 85, 127)
HSL	hsl(204, 69%, 29%)
HSV	hsv(204, 82%, 50%)
CMYK	cmyk(81.9%, 33.1%, 0%, 50.2%)
CIE-LAB	lab(34.42, -3.52, -29.12)
CIE-LCH	lch(34.42, 29.33, 263.11°)
OKLab	oklab(43.25% -0.0414 -0.0826)
OKLCH	oklch(43.25% 0.092 243.4)
XYZ	xyz(7.4311, 8.2106, 21.2677)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17557F #7F4117

analogous

#177F75 #17557F #17217F

triadic

#17557F #7F1755 #557F17

tetradic

#17557F #75177F #7F4117 #217F17

square

#17557F #75177F #7F4117 #217F17

split-complementary

#17557F #7F1721 #7F7517

monochromatic

#05111A #0E324B #17557F #2078B3 #3698DB

Accessibility & contrast

On white

7.95

#17557F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#17557F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17557F

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17557F	#FFFFFF	#000000	##FFFFFF
##17557F	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415681

Deuteranopia (green-blind)

#334D7E

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #17557f;
/* rgb */ color: rgb(23, 85, 127);
/* oklch */ color: oklch(43.3% 0.092 243.4);

Tailwind

colors: {
  custom: {
    50: '#6684a4',
    500: '#17557f',
    950: '#000000',
  },
}

SCSS

$custom: #17557f;
$custom-light: #6684a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17557f",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 127
  },
  "hsl": {
    "h": 204.231,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.43251,
    "c": 0.09243,
    "h": 243.4
  },
  "luminance": 0.08211
}

Semantic roles & 50–950 ramp

primary

#17557F

secondary

#B46E3E

accent

#833CEC

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #17557F

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

Preview Lab → · Contrast checker → · Palette generator →