#1D5370#1D5370

#1D5370 is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.1% C 0.074 H 236.0°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D5370
RGB	rgb(29, 83, 112)
HSL	hsl(201, 59%, 28%)
HSV	hsv(201, 74%, 44%)
CMYK	cmyk(74.1%, 25.9%, 0%, 56.1%)
CIE-LAB	lab(33.17, -7.23, -21.75)
CIE-LCH	lch(33.17, 22.92, 251.60°)
OKLab	oklab(42.06% -0.0413 -0.0612)
OKLCH	oklch(42.06% 0.074 236)
XYZ	xyz(6.5234, 7.6168, 16.4525)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5370 #703A1D

analogous

#1D7063 #1D5370 #1D2970

triadic

#1D5370 #701D53 #53701D

tetradic

#1D5370 #631D70 #703A1D #29701D

square

#1D5370 #631D70 #703A1D #29701D

split-complementary

#1D5370 #701D29 #70631D

monochromatic

#061218 #102F3F #1D5370 #2A77A1 #3B9ACC

Accessibility & contrast

On white

8.32

#1D5370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1D5370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5370

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5370	#FFFFFF	#000000	##FFFFFF
##1D5370	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455371

Deuteranopia (green-blind)

#3A4A70

Tritanopia (blue-blind)

#005B5D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d5370;
/* rgb */ color: rgb(29, 83, 112);
/* oklch */ color: oklch(42.1% 0.074 236.0);

Tailwind

colors: {
  custom: {
    50: '#658399',
    500: '#1d5370',
    950: '#000000',
  },
}

SCSS

$custom: #1d5370;
$custom-light: #658399;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5370",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 112
  },
  "hsl": {
    "h": 200.964,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.42061,
    "c": 0.07383,
    "h": 236
  },
  "luminance": 0.07618
}

Semantic roles & 50–950 ramp

primary

#1D5370

secondary

#A46644

accent

#7C46E2

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1D5370

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

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