#1C5B79#1C5B79

#1C5B79 is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.6% C 0.079 H 233.5°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#1C5B79
RGB	rgb(28, 91, 121)
HSL	hsl(199, 62%, 29%)
HSV	hsv(199, 77%, 47%)
CMYK	cmyk(76.9%, 24.8%, 0%, 52.5%)
CIE-LAB	lab(36.19, -8.90, -22.63)
CIE-LCH	lch(36.19, 24.32, 248.53°)
OKLab	oklab(44.6% -0.0471 -0.0637)
OKLCH	oklch(44.6% 0.079 233.5)
XYZ	xyz(7.6698, 9.1086, 19.4394)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5B79 #793A1C

analogous

#1C7969 #1C5B79 #1C2D79

triadic

#1C5B79 #791C5B #5B791C

tetradic

#1C5B79 #691C79 #793A1C #2D791C

square

#1C5B79 #691C79 #793A1C #2D791C

split-complementary

#1C5B79 #791C2D #79691C

monochromatic

#061319 #103647 #1C5B79 #2880AB #3DA2D2

Accessibility & contrast

On white

7.44

#1C5B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1C5B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5B79

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5B79	#FFFFFF	#000000	##FFFFFF
##1C5B79	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5A7A

Deuteranopia (green-blind)

#405179

Tritanopia (blue-blind)

#006365

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c5b79;
/* rgb */ color: rgb(28, 91, 121);
/* oklch */ color: oklch(44.6% 0.079 233.5);

Tailwind

colors: {
  custom: {
    50: '#6789a0',
    500: '#1c5b79',
    950: '#000000',
  },
}

SCSS

$custom: #1c5b79;
$custom-light: #6789a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5b79",
  "rgb": {
    "r": 28,
    "g": 91,
    "b": 121
  },
  "hsl": {
    "h": 199.355,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.44598,
    "c": 0.07922,
    "h": 233.5
  },
  "luminance": 0.0911
}

Semantic roles & 50–950 ramp

primary

#1C5B79

secondary

#AD6644

accent

#7742E5

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1C5B79

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

Preview Lab → · Contrast checker → · Palette generator →