#174F5B#174F5B

#174F5B is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.7% C 0.060 H 214.9°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#174F5B
RGB	rgb(23, 79, 91)
HSL	hsl(191, 60%, 22%)
HSV	hsv(191, 75%, 36%)
CMYK	cmyk(74.7%, 13.2%, 0%, 64.3%)
CIE-LAB	lab(30.71, -13.53, -12.30)
CIE-LCH	lch(30.71, 18.29, 222.29°)
OKLab	oklab(39.73% -0.0491 -0.0343)
OKLCH	oklch(39.73% 0.06 214.9)
XYZ	xyz(5.0369, 6.5289, 10.8902)
Luminance	0.0653 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174F5B #5B2317

analogous

#175B45 #174F5B #172D5B

triadic

#174F5B #5B174F #4F5B17

tetradic

#174F5B #45175B #5B2317 #2D5B17

square

#174F5B #45175B #5B2317 #2D5B17

split-complementary

#174F5B #5B172D #5B4517

monochromatic

#061518 #0B252A #174F5B #23798C #30A4BD

Accessibility & contrast

On white

9.11

#174F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#174F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174F5B

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174F5B	#FFFFFF	#000000	##FFFFFF
##174F5B	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474C5C

Deuteranopia (green-blind)

#3D455B

Tritanopia (blue-blind)

#005353

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #174f5b;
/* rgb */ color: rgb(23, 79, 91);
/* oklch */ color: oklch(39.7% 0.060 214.9);

Tailwind

colors: {
  custom: {
    50: '#5f8089',
    500: '#174f5b',
    950: '#000000',
  },
}

SCSS

$custom: #174f5b;
$custom-light: #5f8089;
$custom-dark: #000000;

JSON

{
  "hex": "#174f5b",
  "rgb": {
    "r": 23,
    "g": 79,
    "b": 91
  },
  "hsl": {
    "h": 190.588,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.39731,
    "c": 0.05984,
    "h": 214.9
  },
  "luminance": 0.06529
}

Semantic roles & 50–950 ramp

primary

#174F5B

secondary

#924B3C

accent

#6145E3

background

#F5F7F8

surface

#EAEEF0

border

#C6C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #174F5B

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

Preview Lab → · Contrast checker → · Palette generator →