#172B43#172B43

#172B43 is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.5% C 0.052 H 253.9°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#172B43
RGB	rgb(23, 43, 67)
HSL	hsl(213, 49%, 18%)
HSV	hsv(213, 66%, 26%)
CMYK	cmyk(65.7%, 35.8%, 0%, 73.7%)
CIE-LAB	lab(17.06, 0.64, -17.55)
CIE-LCH	lch(17.06, 17.56, 272.08°)
OKLab	oklab(28.49% -0.0143 -0.0495)
OKLCH	oklch(28.49% 0.052 253.9)
XYZ	xyz(2.2300, 2.3150, 5.6384)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B43 #432F17

analogous

#174143 #172B43 #191743

triadic

#172B43 #43172B #2B4317

tetradic

#172B43 #431741 #432F17 #174319

square

#172B43 #431741 #432F17 #174319

split-complementary

#172B43 #431917 #414317

monochromatic

#080F17 #080F17 #172B43 #274871 #36659E

Accessibility & contrast

On white

14.35

#172B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B43

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B43	#FFFFFF	#000000	##FFFFFF
##172B43	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212C44

Deuteranopia (green-blind)

#1B2843

Tritanopia (blue-blind)

#003034

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172b43;
/* rgb */ color: rgb(23, 43, 67);
/* oklch */ color: oklch(28.5% 0.052 253.9);

Tailwind

colors: {
  custom: {
    50: '#586477',
    500: '#172b43',
    950: '#000000',
  },
}

SCSS

$custom: #172b43;
$custom-light: #586477;
$custom-dark: #000000;

JSON

{
  "hex": "#172b43",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 67
  },
  "hsl": {
    "h": 212.727,
    "s": 48.889,
    "l": 17.647
  },
  "oklch": {
    "l": 0.28493,
    "c": 0.05151,
    "h": 253.9
  },
  "luminance": 0.02315
}

Semantic roles & 50–950 ramp

primary

#172B43

secondary

#7A5E3C

accent

#9A4FD8

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#040508

muted

#79797B

Preview Lab

Preview with #172B43

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

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