#175A6B#175A6B

#175A6B is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.5% C 0.070 H 218.8°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#175A6B
RGB	rgb(23, 90, 107)
HSL	hsl(192, 65%, 25%)
HSV	hsv(192, 79%, 42%)
CMYK	cmyk(78.5%, 15.9%, 0%, 58%)
CIE-LAB	lab(35.11, -14.16, -15.64)
CIE-LCH	lch(35.11, 21.10, 227.84°)
OKLab	oklab(43.49% -0.0543 -0.0437)
OKLCH	oklch(43.49% 0.07 218.8)
XYZ	xyz(6.6622, 8.5552, 15.2073)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175A6B #6B2817

analogous

#176B52 #175A6B #17306B

triadic

#175A6B #6B175A #5A6B17

tetradic

#175A6B #52176B #6B2817 #306B17

square

#175A6B #52176B #6B2817 #306B17

split-complementary

#175A6B #6B1730 #6B5217

monochromatic

#051519 #0C3039 #175A6B #22849D #2DAFD0

Accessibility & contrast

On white

7.75

#175A6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#175A6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #175A6B

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175A6B	#FFFFFF	#000000	##FFFFFF
##175A6B	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F576C

Deuteranopia (green-blind)

#444F6B

Tritanopia (blue-blind)

#00605F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #175a6b;
/* rgb */ color: rgb(23, 90, 107);
/* oklch */ color: oklch(43.5% 0.070 218.8);

Tailwind

colors: {
  custom: {
    50: '#638895',
    500: '#175a6b',
    950: '#000000',
  },
}

SCSS

$custom: #175a6b;
$custom-light: #638895;
$custom-dark: #000000;

JSON

{
  "hex": "#175a6b",
  "rgb": {
    "r": 23,
    "g": 90,
    "b": 107
  },
  "hsl": {
    "h": 192.143,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.43493,
    "c": 0.06969,
    "h": 218.8
  },
  "luminance": 0.08556
}

Semantic roles & 50–950 ramp

primary

#175A6B

secondary

#A1513D

accent

#6240E8

background

#F6F8F9

surface

#EBF0F1

border

#C6CBCB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #175A6B

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

Preview Lab → · Contrast checker → · Palette generator →