#174E81#174E81

#174E81 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.6% C 0.102 H 250.5°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#174E81
RGB	rgb(23, 78, 129)
HSL	hsl(209, 70%, 30%)
HSV	hsv(209, 82%, 51%)
CMYK	cmyk(82.2%, 39.5%, 0%, 49.4%)
CIE-LAB	lab(32.29, 1.82, -33.72)
CIE-LCH	lch(32.29, 33.77, 273.08°)
OKLab	oklab(41.62% -0.0341 -0.0962)
OKLCH	oklch(41.62% 0.102 250.5)
XYZ	xyz(7.0387, 7.2151, 21.7863)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174E81 #814A17

analogous

#17817F #174E81 #171981

triadic

#174E81 #81174E #4E8117

tetradic

#174E81 #7F1781 #814A17 #198117

square

#174E81 #7F1781 #814A17 #198117

split-complementary

#174E81 #811719 #817F17

monochromatic

#05101A #0E2F4D #174E81 #206DB5 #378CDB

Accessibility & contrast

On white

8.60

#174E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#174E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174E81

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174E81	#FFFFFF	#000000	##FFFFFF
##174E81	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365183

Deuteranopia (green-blind)

#254880

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #174e81;
/* rgb */ color: rgb(23, 78, 129);
/* oklch */ color: oklch(41.6% 0.102 250.5);

Tailwind

colors: {
  custom: {
    50: '#667fa6',
    500: '#174e81',
    950: '#000000',
  },
}

SCSS

$custom: #174e81;
$custom-light: #667fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#174e81",
  "rgb": {
    "r": 23,
    "g": 78,
    "b": 129
  },
  "hsl": {
    "h": 208.868,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41615,
    "c": 0.10208,
    "h": 250.5
  },
  "luminance": 0.07216
}

Semantic roles & 50–950 ramp

primary

#174E81

secondary

#B5783E

accent

#913BED

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #174E81

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

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