#104E5C#104E5C

#104E5C is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.3% C 0.064 H 216.9°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#104E5C
RGB	rgb(16, 78, 92)
HSL	hsl(191, 70%, 21%)
HSV	hsv(191, 83%, 36%)
CMYK	cmyk(82.6%, 15.2%, 0%, 63.9%)
CIE-LAB	lab(30.23, -13.58, -13.69)
CIE-LCH	lch(30.23, 19.28, 225.21°)
OKLab	oklab(39.31% -0.0509 -0.0382)
OKLCH	oklch(39.31% 0.064 216.9)
XYZ	xyz(4.8690, 6.3311, 11.0885)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104E5C #5C1E10

analogous

#105C44 #104E5C #10285C

triadic

#104E5C #5C104E #4E5C10

tetradic

#104E5C #44105C #5C1E10 #285C10

square

#104E5C #44105C #5C1E10 #285C10

split-complementary

#104E5C #5C1028 #5C4410

monochromatic

#05161A #072228 #104E5C #197A90 #22A6C4

Accessibility & contrast

On white

9.27

#104E5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#104E5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104E5C

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104E5C	#FFFFFF	#000000	##FFFFFF
##104E5C	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454B5D

Deuteranopia (green-blind)

#3B445C

Tritanopia (blue-blind)

#005352

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #104e5c;
/* rgb */ color: rgb(16, 78, 92);
/* oklch */ color: oklch(39.3% 0.064 216.9);

Tailwind

colors: {
  custom: {
    50: '#5d7f8a',
    500: '#104e5c',
    950: '#000000',
  },
}

SCSS

$custom: #104e5c;
$custom-light: #5d7f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#104e5c",
  "rgb": {
    "r": 16,
    "g": 78,
    "b": 92
  },
  "hsl": {
    "h": 191.053,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.39312,
    "c": 0.06368,
    "h": 216.9
  },
  "luminance": 0.06332
}

Semantic roles & 50–950 ramp

primary

#104E5C

secondary

#954533

accent

#5C3BED

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #104E5C

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

Preview Lab → · Contrast checker → · Palette generator →