#104B5A#104B5A

#104B5A is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 38.4% C 0.063 H 219.2°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#104B5A
RGB	rgb(16, 75, 90)
HSL	hsl(192, 70%, 21%)
HSV	hsv(192, 82%, 35%)
CMYK	cmyk(82.2%, 16.7%, 0%, 64.7%)
CIE-LAB	lab(29.11, -12.56, -14.13)
CIE-LCH	lch(29.11, 18.90, 228.38°)
OKLab	oklab(38.38% -0.0485 -0.0395)
OKLCH	oklch(38.38% 0.063 219.2)
XYZ	xyz(4.5744, 5.8799, 10.5647)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#104B5A #5A1F10

analogous

#105A44 #104B5A #10265A

triadic

#104B5A #5A104B #4B5A10

tetradic

#104B5A #44105A #5A1F10 #265A10

square

#104B5A #44105A #5A1F10 #265A10

split-complementary

#104B5A #5A1026 #5A4410

monochromatic

#05161A #072026 #104B5A #19768E #22A2C2

Accessibility & contrast

On white

9.65

#104B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#104B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #104B5A

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##104B5A	#FFFFFF	#000000	##FFFFFF
##104B5A	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42495B

Deuteranopia (green-blind)

#38415A

Tritanopia (blue-blind)

#005050

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #104b5a;
/* rgb */ color: rgb(16, 75, 90);
/* oklch */ color: oklch(38.4% 0.063 219.2);

Tailwind

colors: {
  custom: {
    50: '#5c7d88',
    500: '#104b5a',
    950: '#000000',
  },
}

SCSS

$custom: #104b5a;
$custom-light: #5c7d88;
$custom-dark: #000000;

JSON

{
  "hex": "#104b5a",
  "rgb": {
    "r": 16,
    "g": 75,
    "b": 90
  },
  "hsl": {
    "h": 192.162,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.38378,
    "c": 0.06256,
    "h": 219.2
  },
  "luminance": 0.0588
}

Semantic roles & 50–950 ramp

primary

#104B5A

secondary

#934633

accent

#5F3BED

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #104B5A

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

Preview Lab → · Contrast checker → · Palette generator →