#1D587B#1D587B

#1D587B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.083 H 239.1°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#1D587B
RGB	rgb(29, 88, 123)
HSL	hsl(202, 62%, 30%)
HSV	hsv(202, 76%, 48%)
CMYK	cmyk(76.4%, 28.5%, 0%, 51.8%)
CIE-LAB	lab(35.34, -6.17, -25.19)
CIE-LCH	lch(35.34, 25.93, 256.24°)
OKLab	oklab(43.96% -0.0426 -0.0711)
OKLCH	oklch(43.96% 0.083 239.1)
XYZ	xyz(7.5702, 8.6698, 20.0095)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D587B #7B401D

analogous

#1D7B6F #1D587B #1D297B

triadic

#1D587B #7B1D58 #587B1D

tetradic

#1D587B #6F1D7B #7B401D #297B1D

square

#1D587B #6F1D7B #7B401D #297B1D

split-complementary

#1D587B #7B1D29 #7B6F1D

monochromatic

#061219 #113549 #1D587B #297BAD #409CD2

Accessibility & contrast

On white

7.68

#1D587B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1D587B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D587B

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D587B	#FFFFFF	#000000	##FFFFFF
##1D587B	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48587D

Deuteranopia (green-blind)

#3B4F7A

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d587b;
/* rgb */ color: rgb(29, 88, 123);
/* oklch */ color: oklch(44.0% 0.083 239.1);

Tailwind

colors: {
  custom: {
    50: '#6787a1',
    500: '#1d587b',
    950: '#000000',
  },
}

SCSS

$custom: #1d587b;
$custom-light: #6787a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d587b",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 123
  },
  "hsl": {
    "h": 202.34,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.4396,
    "c": 0.08292,
    "h": 239.1
  },
  "luminance": 0.08671
}

Semantic roles & 50–950 ramp

primary

#1D587B

secondary

#AF6C45

accent

#7F43E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1D587B

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

Preview Lab → · Contrast checker → · Palette generator →