#1C577E#1C577E

#1C577E is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.8% C 0.088 H 242.0°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#1C577E
RGB	rgb(28, 87, 126)
HSL	hsl(204, 64%, 30%)
HSV	hsv(204, 78%, 49%)
CMYK	cmyk(77.8%, 31%, 0%, 50.6%)
CIE-LAB	lab(35.14, -4.54, -27.35)
CIE-LCH	lch(35.14, 27.73, 260.58°)
OKLab	oklab(43.84% -0.0411 -0.0774)
OKLCH	oklch(43.84% 0.088 242)
XYZ	xyz(7.6515, 8.5687, 20.9853)
Luminance	0.0857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C577E #7E431C

analogous

#1C7E74 #1C577E #1C267E

triadic

#1C577E #7E1C57 #577E1C

tetradic

#1C577E #741C7E #7E431C #267E1C

square

#1C577E #741C7E #7E431C #267E1C

split-complementary

#1C577E #7E1C26 #7E741C

monochromatic

#06121A #11344C #1C577E #277AB0 #4099D5

Accessibility & contrast

On white

7.74

#1C577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1C577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C577E

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C577E	#FFFFFF	#000000	##FFFFFF
##1C577E	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455880

Deuteranopia (green-blind)

#374F7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c577e;
/* rgb */ color: rgb(28, 87, 126);
/* oklch */ color: oklch(43.8% 0.088 242.0);

Tailwind

colors: {
  custom: {
    50: '#6786a3',
    500: '#1c577e',
    950: '#000000',
  },
}

SCSS

$custom: #1c577e;
$custom-light: #6786a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c577e",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 203.878,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.43843,
    "c": 0.08768,
    "h": 242
  },
  "luminance": 0.0857
}

Semantic roles & 50–950 ramp

primary

#1C577E

secondary

#B27044

accent

#8341E7

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1C577E

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

Preview Lab → · Contrast checker → · Palette generator →