#174F81#174F81

#174F81 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.9% C 0.101 H 249.7°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#174F81
RGB	rgb(23, 79, 129)
HSL	hsl(208, 70%, 30%)
HSV	hsv(208, 82%, 51%)
CMYK	cmyk(82.2%, 38.8%, 0%, 49.4%)
CIE-LAB	lab(32.61, 1.16, -33.21)
CIE-LCH	lch(32.61, 33.23, 272.00°)
OKLab	oklab(41.86% -0.035 -0.0947)
OKLCH	oklch(41.86% 0.101 249.7)
XYZ	xyz(7.1103, 7.3582, 21.8102)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174F81 #814917

analogous

#17817E #174F81 #171A81

triadic

#174F81 #81174F #4F8117

tetradic

#174F81 #7E1781 #814917 #1A8117

square

#174F81 #7E1781 #814917 #1A8117

split-complementary

#174F81 #81171A #817E17

monochromatic

#05101A #0E2F4D #174F81 #206FB5 #378EDB

Accessibility & contrast

On white

8.50

#174F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#174F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174F81

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174F81	#FFFFFF	#000000	##FFFFFF
##174F81	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375283

Deuteranopia (green-blind)

#274880

Tritanopia (blue-blind)

#005B61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #174f81;
/* rgb */ color: rgb(23, 79, 129);
/* oklch */ color: oklch(41.9% 0.101 249.7);

Tailwind

colors: {
  custom: {
    50: '#667fa6',
    500: '#174f81',
    950: '#000000',
  },
}

SCSS

$custom: #174f81;
$custom-light: #667fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#174f81",
  "rgb": {
    "r": 23,
    "g": 79,
    "b": 129
  },
  "hsl": {
    "h": 208.302,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41864,
    "c": 0.10099,
    "h": 249.7
  },
  "luminance": 0.07359
}

Semantic roles & 50–950 ramp

primary

#174F81

secondary

#B5773E

accent

#8F3BED

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #174F81

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

Preview Lab → · Contrast checker → · Palette generator →