#17537D#17537D

#17537D is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.6% C 0.092 H 244.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#17537D
RGB	rgb(23, 83, 125)
HSL	hsl(205, 69%, 29%)
HSV	hsv(205, 82%, 49%)
CMYK	cmyk(81.6%, 33.6%, 0%, 51%)
CIE-LAB	lab(33.67, -3.04, -29.07)
CIE-LCH	lch(33.67, 29.22, 264.04°)
OKLab	oklab(42.62% -0.0401 -0.0825)
OKLCH	oklch(42.62% 0.092 244.1)
XYZ	xyz(7.1468, 7.8485, 20.5363)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17537D #7D4117

analogous

#177D74 #17537D #17207D

triadic

#17537D #7D1753 #537D17

tetradic

#17537D #74177D #7D4117 #207D17

square

#17537D #74177D #7D4117 #207D17

split-complementary

#17537D #7D1720 #7D7417

monochromatic

#05111A #0D3149 #17537D #2175B1 #3596DA

Accessibility & contrast

On white

8.17

#17537D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#17537D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17537D

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17537D	#FFFFFF	#000000	##FFFFFF
##17537D	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F547F

Deuteranopia (green-blind)

#314B7C

Tritanopia (blue-blind)

#005D62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #17537d;
/* rgb */ color: rgb(23, 83, 125);
/* oklch */ color: oklch(42.6% 0.092 244.1);

Tailwind

colors: {
  custom: {
    50: '#6583a3',
    500: '#17537d',
    950: '#000000',
  },
}

SCSS

$custom: #17537d;
$custom-light: #6583a3;
$custom-dark: #000000;

JSON

{
  "hex": "#17537d",
  "rgb": {
    "r": 23,
    "g": 83,
    "b": 125
  },
  "hsl": {
    "h": 204.706,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.42622,
    "c": 0.09174,
    "h": 244.1
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary

#17537D

secondary

#B26E3E

accent

#843CEC

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #17537D

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

Preview Lab → · Contrast checker → · Palette generator →