#175C81#175C81

#175C81 is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.2% C 0.089 H 237.7°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#175C81
RGB	rgb(23, 92, 129)
HSL	hsl(201, 70%, 30%)
HSV	hsv(201, 82%, 51%)
CMYK	cmyk(82.2%, 28.7%, 0%, 49.4%)
CIE-LAB	lab(36.78, -7.10, -26.63)
CIE-LCH	lch(36.78, 27.56, 255.07°)
OKLab	oklab(45.16% -0.0476 -0.0753)
OKLCH	oklch(45.16% 0.089 237.7)
XYZ	xyz(8.1414, 9.4204, 22.1539)
Luminance	0.0942 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175C81 #813C17

analogous

#178171 #175C81 #172781

triadic

#175C81 #81175C #5C8117

tetradic

#175C81 #711781 #813C17 #278117

square

#175C81 #711781 #813C17 #278117

split-complementary

#175C81 #811727 #817117

monochromatic

#05131A #0E374D #175C81 #2081B5 #37A2DB

Accessibility & contrast

On white

7.28

#175C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#175C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #175C81

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175C81	#FFFFFF	#000000	##FFFFFF
##175C81	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5C83

Deuteranopia (green-blind)

#3C5280

Tritanopia (blue-blind)

#006569

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #175c81;
/* rgb */ color: rgb(23, 92, 129);
/* oklch */ color: oklch(45.2% 0.089 237.7);

Tailwind

colors: {
  custom: {
    50: '#678aa5',
    500: '#175c81',
    950: '#000000',
  },
}

SCSS

$custom: #175c81;
$custom-light: #678aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#175c81",
  "rgb": {
    "r": 23,
    "g": 92,
    "b": 129
  },
  "hsl": {
    "h": 200.943,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.45159,
    "c": 0.08911,
    "h": 237.7
  },
  "luminance": 0.09421
}

Semantic roles & 50–950 ramp

primary

#175C81

secondary

#B5683E

accent

#793BED

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #175C81

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

Preview Lab → · Contrast checker → · Palette generator →