#175F81#175F81

#175F81 is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 45.9% C 0.087 H 234.4°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#175F81
RGB	rgb(23, 95, 129)
HSL	hsl(199, 70%, 30%)
HSV	hsv(199, 82%, 51%)
CMYK	cmyk(82.2%, 26.4%, 0%, 49.4%)
CIE-LAB	lab(37.75, -8.92, -25.11)
CIE-LCH	lch(37.75, 26.65, 250.44°)
OKLab	oklab(45.93% -0.0506 -0.0709)
OKLCH	oklch(45.93% 0.087 234.4)
XYZ	xyz(8.4064, 9.9505, 22.2422)
Luminance	0.0995 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175F81 #813917

analogous

#17816E #175F81 #172A81

triadic

#175F81 #81175F #5F8117

tetradic

#175F81 #6E1781 #813917 #2A8117

square

#175F81 #6E1781 #813917 #2A8117

split-complementary

#175F81 #81172A #816E17

monochromatic

#05131A #0E394D #175F81 #2085B5 #37A7DB

Accessibility & contrast

On white

7.02

#175F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#175F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #175F81

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175F81	#FFFFFF	#000000	##FFFFFF
##175F81	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5E83

Deuteranopia (green-blind)

#405580

Tritanopia (blue-blind)

#00686B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #175f81;
/* rgb */ color: rgb(23, 95, 129);
/* oklch */ color: oklch(45.9% 0.087 234.4);

Tailwind

colors: {
  custom: {
    50: '#678ca5',
    500: '#175f81',
    950: '#000000',
  },
}

SCSS

$custom: #175f81;
$custom-light: #678ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#175f81",
  "rgb": {
    "r": 23,
    "g": 95,
    "b": 129
  },
  "hsl": {
    "h": 199.245,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.45932,
    "c": 0.0871,
    "h": 234.4
  },
  "luminance": 0.09952
}

Semantic roles & 50–950 ramp

primary

#175F81

secondary

#B5653E

accent

#743BED

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #175F81

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

Preview Lab → · Contrast checker → · Palette generator →