#174D81#174D81

#174D81 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.4% C 0.103 H 251.3°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#174D81
RGB	rgb(23, 77, 129)
HSL	hsl(209, 70%, 30%)
HSV	hsv(209, 82%, 51%)
CMYK	cmyk(82.2%, 40.3%, 0%, 49.4%)
CIE-LAB	lab(31.98, 2.48, -34.22)
CIE-LCH	lch(31.98, 34.31, 274.14°)
OKLab	oklab(41.37% -0.0332 -0.0977)
OKLCH	oklch(41.37% 0.103 251.3)
XYZ	xyz(6.9682, 7.0741, 21.7628)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174D81 #814B17

analogous

#178180 #174D81 #171881

triadic

#174D81 #81174D #4D8117

tetradic

#174D81 #801781 #814B17 #188117

square

#174D81 #801781 #814B17 #188117

split-complementary

#174D81 #811718 #818017

monochromatic

#05101A #0E2E4D #174D81 #206CB5 #378BDB

Accessibility & contrast

On white

8.70

#174D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#174D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174D81

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174D81	#FFFFFF	#000000	##FFFFFF
##174D81	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345083

Deuteranopia (green-blind)

#234780

Tritanopia (blue-blind)

#005960

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #174d81;
/* rgb */ color: rgb(23, 77, 129);
/* oklch */ color: oklch(41.4% 0.103 251.3);

Tailwind

colors: {
  custom: {
    50: '#667ea6',
    500: '#174d81',
    950: '#000000',
  },
}

SCSS

$custom: #174d81;
$custom-light: #667ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#174d81",
  "rgb": {
    "r": 23,
    "g": 77,
    "b": 129
  },
  "hsl": {
    "h": 209.434,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41367,
    "c": 0.1032,
    "h": 251.3
  },
  "luminance": 0.07075
}

Semantic roles & 50–950 ramp

primary

#174D81

secondary

#B5793E

accent

#923BED

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #174D81

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

Preview Lab → · Contrast checker → · Palette generator →