#1D577E#1D577E

#1D577E is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.9% C 0.087 H 242.3°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D577E
RGB	rgb(29, 87, 126)
HSL	hsl(204, 63%, 30%)
HSV	hsv(204, 77%, 49%)
CMYK	cmyk(77%, 31%, 0%, 50.6%)
CIE-LAB	lab(35.17, -4.40, -27.31)
CIE-LCH	lch(35.17, 27.66, 260.84°)
OKLab	oklab(43.87% -0.0406 -0.0773)
OKLCH	oklch(43.87% 0.087 242.3)
XYZ	xyz(7.6793, 8.5831, 20.9866)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D577E #7E441D

analogous

#1D7E75 #1D577E #1D267E

triadic

#1D577E #7E1D57 #577E1D

tetradic

#1D577E #751D7E #7E441D #267E1D

square

#1D577E #751D7E #7E441D #267E1D

split-complementary

#1D577E #7E1D26 #7E751D

monochromatic

#06121B #12354C #1D577E #2879B0 #4299D3

Accessibility & contrast

On white

7.73

#1D577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1D577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D577E

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D577E	#FFFFFF	#000000	##FFFFFF
##1D577E	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455880

Deuteranopia (green-blind)

#384F7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d577e;
/* rgb */ color: rgb(29, 87, 126);
/* oklch */ color: oklch(43.9% 0.087 242.3);

Tailwind

colors: {
  custom: {
    50: '#6886a3',
    500: '#1d577e',
    950: '#000000',
  },
}

SCSS

$custom: #1d577e;
$custom-light: #6886a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d577e",
  "rgb": {
    "r": 29,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 204.124,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.43874,
    "c": 0.08728,
    "h": 242.3
  },
  "luminance": 0.08584
}

Semantic roles & 50–950 ramp

primary

#1D577E

secondary

#B17145

accent

#8442E6

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1D577E

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

Preview Lab → · Contrast checker → · Palette generator →