#104E5B#104E5B

#104E5B is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.3% C 0.063 H 215.5°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX#104E5B
RGBrgb(16, 78, 91)
HSLhsl(190, 70%, 21%)
HSVhsv(190, 82%, 36%)
CMYKcmyk(82.4%, 14.3%, 0%, 64.3%)
CIE-LABlab(30.19, -13.95, -13.11)
CIE-LCHlch(30.19, 19.15, 223.22°)
OKLaboklab(39.26% -0.0514 -0.0366)
OKLCHoklch(39.26% 0.063 215.5)
XYZxyz(4.8256, 6.3137, 10.8598)
Luminance0.0631 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#104E5B #5B1D10
analogous
#105B42 #104E5B #10285B
triadic
#104E5B #5B104E #4E5B10
tetradic
#104E5B #42105B #5B1D10 #285B10
square
#104E5B #42105B #5B1D10 #285B10
split-complementary
#104E5B #5B1028 #5B4210
monochromatic
#05161A #072127 #104E5B #197B8F #22A7C3

Accessibility & contrast

On white

9.28
#104E5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.26
#104E5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104E5B
9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##104E5B#FFFFFF#000000##FFFFFF
##104E5B1.009.282.269.28
#FFFFFF9.281.0021.001.00
#0000002.2621.001.0021.00
##FFFFFF9.281.0021.001.00

Color blindness preview

Protanopia (red-blind)
#454B5C
Deuteranopia (green-blind)
#3B445B
Tritanopia (blue-blind)
#005352
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #104e5b;
/* rgb */ color: rgb(16, 78, 91);
/* oklch */ color: oklch(39.3% 0.063 215.5);
Tailwind
colors: {
  custom: {
    50: '#5d7f89',
    500: '#104e5b',
    950: '#000000',
  },
}
SCSS
$custom: #104e5b;
$custom-light: #5d7f89;
$custom-dark: #000000;
JSON
{
  "hex": "#104e5b",
  "rgb": {
    "r": 16,
    "g": 78,
    "b": 91
  },
  "hsl": {
    "h": 190.4,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.39264,
    "c": 0.06308,
    "h": 215.5
  },
  "luminance": 0.06314
}

Semantic roles & 50–950 ramp

primary
#104E5B
secondary
#944433
accent
#5A3BED
background
#F5F7F8
surface
#E9EEF0
border
#C5C9CB
text
#050A0B
muted
#797C7C

Preview Lab

Preview with #104E5B

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

Preview Lab → · Contrast checker → · Palette generator →

#104E5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva