#1C4E59#1C4E59

#1C4E59 is a dark, muted cyan. Relative luminance 0.064; OKLCH L 39.5% C 0.056 H 214.7°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E59
RGB	rgb(28, 78, 89)
HSL	hsl(191, 52%, 23%)
HSV	hsv(191, 69%, 35%)
CMYK	cmyk(68.5%, 12.4%, 0%, 65.1%)
CIE-LAB	lab(30.44, -12.75, -11.42)
CIE-LCH	lch(30.44, 17.12, 221.86°)
OKLab	oklab(39.53% -0.0458 -0.0317)
OKLCH	oklch(39.53% 0.056 214.7)
XYZ	xyz(5.0057, 6.4164, 10.4239)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E59 #59271C

analogous

#1C5945 #1C4E59 #1C2F59

triadic

#1C4E59 #591C4E #4E591C

tetradic

#1C4E59 #451C59 #59271C #2F591C

square

#1C4E59 #451C59 #59271C #2F591C

split-complementary

#1C4E59 #591C2F #59451C

monochromatic

#071417 #0D252A #1C4E59 #2B7788 #39A0B6

Accessibility & contrast

On white

9.20

#1C4E59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1C4E59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E59

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E59	#FFFFFF	#000000	##FFFFFF
##1C4E59	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464B5A

Deuteranopia (green-blind)

#3D4559

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4e59;
/* rgb */ color: rgb(28, 78, 89);
/* oklch */ color: oklch(39.5% 0.056 214.7);

Tailwind

colors: {
  custom: {
    50: '#607f87',
    500: '#1c4e59',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e59;
$custom-light: #607f87;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e59",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 89
  },
  "hsl": {
    "h": 190.82,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.39532,
    "c": 0.0557,
    "h": 214.7
  },
  "luminance": 0.06417
}

Semantic roles & 50–950 ramp

primary

#1C4E59

secondary

#8F5042

accent

#664CDC

background

#F5F7F8

surface

#EAEEEF

border

#C6C9CA

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #1C4E59

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

Preview Lab → · Contrast checker → · Palette generator →