#173E6B#173E6B

#173E6B is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.1% C 0.090 H 254.1°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#173E6B
RGB	rgb(23, 62, 107)
HSL	hsl(212, 65%, 25%)
HSV	hsv(212, 79%, 42%)
CMYK	cmyk(78.5%, 42.1%, 0%, 58%)
CIE-LAB	lab(25.83, 3.60, -30.16)
CIE-LCH	lch(25.83, 30.38, 276.81°)
OKLab	oklab(36.13% -0.0245 -0.0861)
OKLCH	oklch(36.13% 0.09 254.1)
XYZ	xyz(4.7288, 4.6884, 14.5628)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E6B #6B4417

analogous

#17686B #173E6B #1A176B

triadic

#173E6B #6B173E #3E6B17

tetradic

#173E6B #6B1768 #6B4417 #176B1A

square

#173E6B #6B1768 #6B4417 #176B1A

split-complementary

#173E6B #6B1A17 #686B17

monochromatic

#050F19 #0C2139 #173E6B #225B9D #2D78D0

Accessibility & contrast

On white

10.84

#173E6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#173E6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E6B

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E6B	#FFFFFF	#000000	##FFFFFF
##173E6B	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29416D

Deuteranopia (green-blind)

#1B3A6A

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173e6b;
/* rgb */ color: rgb(23, 62, 107);
/* oklch */ color: oklch(36.1% 0.090 254.1);

Tailwind

colors: {
  custom: {
    50: '#617295',
    500: '#173e6b',
    950: '#000000',
  },
}

SCSS

$custom: #173e6b;
$custom-light: #617295;
$custom-dark: #000000;

JSON

{
  "hex": "#173e6b",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 107
  },
  "hsl": {
    "h": 212.143,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.36129,
    "c": 0.08951,
    "h": 254.1
  },
  "luminance": 0.04689
}

Semantic roles & 50–950 ramp

primary

#173E6B

secondary

#A1723D

accent

#9A40E8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #173E6B

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

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