#104C5B#104C5B

#104C5B is a dark, moderate cyan. Relative luminance 0.060; OKLCH L 38.7% C 0.063 H 218.9°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#104C5B
RGB	rgb(16, 76, 91)
HSL	hsl(192, 70%, 21%)
HSV	hsv(192, 82%, 36%)
CMYK	cmyk(82.4%, 16.5%, 0%, 64.3%)
CIE-LAB	lab(29.50, -12.77, -14.17)
CIE-LCH	lch(29.50, 19.08, 227.97°)
OKLab	oklab(38.71% -0.0492 -0.0396)
OKLCH	oklch(38.71% 0.063 218.9)
XYZ	xyz(4.6857, 6.0338, 10.8132)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104C5B #5B1F10

analogous

#105B44 #104C5B #10265B

triadic

#104C5B #5B104C #4C5B10

tetradic

#104C5B #44105B #5B1F10 #265B10

square

#104C5B #44105B #5B1F10 #265B10

split-complementary

#104C5B #5B1026 #5B4410

monochromatic

#05161A #072127 #104C5B #19778F #22A3C3

Accessibility & contrast

On white

9.52

#104C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#104C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104C5B

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104C5B	#FFFFFF	#000000	##FFFFFF
##104C5B	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434A5C

Deuteranopia (green-blind)

#39425B

Tritanopia (blue-blind)

#005151

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #104c5b;
/* rgb */ color: rgb(16, 76, 91);
/* oklch */ color: oklch(38.7% 0.063 218.9);

Tailwind

colors: {
  custom: {
    50: '#5c7e89',
    500: '#104c5b',
    950: '#000000',
  },
}

SCSS

$custom: #104c5b;
$custom-light: #5c7e89;
$custom-dark: #000000;

JSON

{
  "hex": "#104c5b",
  "rgb": {
    "r": 16,
    "g": 76,
    "b": 91
  },
  "hsl": {
    "h": 192,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.38706,
    "c": 0.06314,
    "h": 218.9
  },
  "luminance": 0.06034
}

Semantic roles & 50–950 ramp

primary

#104C5B

secondary

#944633

accent

#5F3BED

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #104C5B

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

Preview Lab → · Contrast checker → · Palette generator →