#1D587F#1D587F

#1D587F is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.088 H 241.9°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#1D587F
RGB	rgb(29, 88, 127)
HSL	hsl(204, 63%, 31%)
HSV	hsv(204, 77%, 50%)
CMYK	cmyk(77.2%, 30.7%, 0%, 50.2%)
CIE-LAB	lab(35.54, -4.64, -27.34)
CIE-LCH	lch(35.54, 27.73, 260.36°)
OKLab	oklab(44.19% -0.0412 -0.0773)
OKLCH	oklch(44.19% 0.088 241.9)
XYZ	xyz(7.8257, 8.7721, 21.3553)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D587F #7F441D

analogous

#1D7F75 #1D587F #1D277F

triadic

#1D587F #7F1D58 #587F1D

tetradic

#1D587F #751D7F #7F441D #277F1D

square

#1D587F #751D7F #7F441D #277F1D

split-complementary

#1D587F #7F1D27 #7F751D

monochromatic

#06131B #12354D #1D587F #287BB1 #429AD4

Accessibility & contrast

On white

7.62

#1D587F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1D587F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D587F

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D587F	#FFFFFF	#000000	##FFFFFF
##1D587F	1.00	7.62	2.75	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465981

Deuteranopia (green-blind)

#384F7E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d587f;
/* rgb */ color: rgb(29, 88, 127);
/* oklch */ color: oklch(44.2% 0.088 241.9);

Tailwind

colors: {
  custom: {
    50: '#6887a4',
    500: '#1d587f',
    950: '#000000',
  },
}

SCSS

$custom: #1d587f;
$custom-light: #6887a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d587f",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 127
  },
  "hsl": {
    "h": 203.878,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.44185,
    "c": 0.08766,
    "h": 241.9
  },
  "luminance": 0.08773
}

Semantic roles & 50–950 ramp

primary

#1D587F

secondary

#B27145

accent

#8342E6

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1D587F

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

Preview Lab → · Contrast checker → · Palette generator →