#173E64#173E64

#173E64 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.079 H 250.6°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#173E64
RGB	rgb(23, 62, 100)
HSL	hsl(210, 63%, 24%)
HSV	hsv(210, 77%, 39%)
CMYK	cmyk(77%, 38%, 0%, 60.8%)
CIE-LAB	lab(25.40, 0.73, -26.34)
CIE-LCH	lch(25.40, 26.35, 271.60°)
OKLab	oklab(35.66% -0.0264 -0.0749)
OKLCH	oklch(35.66% 0.079 250.6)
XYZ	xyz(4.3754, 4.5470, 12.7012)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E64 #643D17

analogous

#176464 #173E64 #171864

triadic

#173E64 #64173E #3E6417

tetradic

#173E64 #641764 #643D17 #186417

square

#173E64 #641764 #643D17 #186417

split-complementary

#173E64 #641718 #646417

monochromatic

#060F19 #0C1F32 #173E64 #225D96 #2E7CC8

Accessibility & contrast

On white

11.00

#173E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#173E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E64

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E64	#FFFFFF	#000000	##FFFFFF
##173E64	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4066

Deuteranopia (green-blind)

#213963

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173e64;
/* rgb */ color: rgb(23, 62, 100);
/* oklch */ color: oklch(35.7% 0.079 250.6);

Tailwind

colors: {
  custom: {
    50: '#607290',
    500: '#173e64',
    950: '#000000',
  },
}

SCSS

$custom: #173e64;
$custom-light: #607290;
$custom-dark: #000000;

JSON

{
  "hex": "#173e64",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 100
  },
  "hsl": {
    "h": 209.61,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35659,
    "c": 0.0794,
    "h": 250.6
  },
  "luminance": 0.04548
}

Semantic roles & 50–950 ramp

primary

#173E64

secondary

#9A6B3C

accent

#9342E6

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #173E64

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

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