#1D5570#1D5570

#1D5570 is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.6% C 0.073 H 233.2°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#1D5570
RGB	rgb(29, 85, 112)
HSL	hsl(200, 59%, 28%)
HSV	hsv(200, 74%, 44%)
CMYK	cmyk(74.1%, 24.1%, 0%, 56.1%)
CIE-LAB	lab(33.83, -8.46, -20.72)
CIE-LCH	lch(33.83, 22.38, 247.78°)
OKLab	oklab(42.59% -0.0435 -0.0582)
OKLCH	oklch(42.59% 0.073 233.2)
XYZ	xyz(6.6787, 7.9273, 16.5042)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5570 #70381D

analogous

#1D7061 #1D5570 #1D2C70

triadic

#1D5570 #701D55 #55701D

tetradic

#1D5570 #611D70 #70381D #2C701D

square

#1D5570 #611D70 #70381D #2C701D

split-complementary

#1D5570 #701D2C #70611D

monochromatic

#061218 #10303F #1D5570 #2A7AA1 #3B9DCC

Accessibility & contrast

On white

8.12

#1D5570 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1D5570 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5570

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5570	#FFFFFF	#000000	##FFFFFF
##1D5570	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485471

Deuteranopia (green-blind)

#3C4C70

Tritanopia (blue-blind)

#005C5E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d5570;
/* rgb */ color: rgb(29, 85, 112);
/* oklch */ color: oklch(42.6% 0.073 233.2);

Tailwind

colors: {
  custom: {
    50: '#658499',
    500: '#1d5570',
    950: '#000000',
  },
}

SCSS

$custom: #1d5570;
$custom-light: #658499;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5570",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 112
  },
  "hsl": {
    "h": 199.518,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.42586,
    "c": 0.07268,
    "h": 233.2
  },
  "luminance": 0.07928
}

Semantic roles & 50–950 ramp

primary

#1D5570

secondary

#A46444

accent

#7946E2

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1D5570

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

Preview Lab → · Contrast checker → · Palette generator →