#104D5A#104D5A

#104D5A is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 38.9% C 0.062 H 215.7°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#104D5A
RGB	rgb(16, 77, 90)
HSL	hsl(191, 70%, 21%)
HSV	hsv(191, 82%, 35%)
CMYK	cmyk(82.2%, 14.4%, 0%, 64.7%)
CIE-LAB	lab(29.80, -13.74, -13.07)
CIE-LCH	lch(29.80, 18.96, 223.57°)
OKLab	oklab(38.94% -0.0507 -0.0365)
OKLCH	oklch(38.94% 0.062 215.7)
XYZ	xyz(4.7122, 6.1555, 10.6107)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104D5A #5A1D10

analogous

#105A42 #104D5A #10285A

triadic

#104D5A #5A104D #4D5A10

tetradic

#104D5A #42105A #5A1D10 #285A10

square

#104D5A #42105A #5A1D10 #285A10

split-complementary

#104D5A #5A1028 #5A4210

monochromatic

#05161A #072126 #104D5A #19798E #22A6C2

Accessibility & contrast

On white

9.41

#104D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#104D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104D5A

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104D5A	#FFFFFF	#000000	##FFFFFF
##104D5A	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444A5B

Deuteranopia (green-blind)

#3A435A

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #104d5a;
/* rgb */ color: rgb(16, 77, 90);
/* oklch */ color: oklch(38.9% 0.062 215.7);

Tailwind

colors: {
  custom: {
    50: '#5c7f88',
    500: '#104d5a',
    950: '#000000',
  },
}

SCSS

$custom: #104d5a;
$custom-light: #5c7f88;
$custom-dark: #000000;

JSON

{
  "hex": "#104d5a",
  "rgb": {
    "r": 16,
    "g": 77,
    "b": 90
  },
  "hsl": {
    "h": 190.541,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.38937,
    "c": 0.06248,
    "h": 215.7
  },
  "luminance": 0.06156
}

Semantic roles & 50–950 ramp

primary

#104D5A

secondary

#934433

accent

#5A3BED

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #104D5A

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

Preview Lab → · Contrast checker → · Palette generator →