#1D537D#1D537D

#1D537D is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.8% C 0.090 H 245.8°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#1D537D
RGB	rgb(29, 83, 125)
HSL	hsl(206, 62%, 30%)
HSV	hsv(206, 77%, 49%)
CMYK	cmyk(76.8%, 33.6%, 0%, 51%)
CIE-LAB	lab(33.83, -2.25, -28.79)
CIE-LCH	lch(33.83, 28.88, 265.52°)
OKLab	oklab(42.8% -0.0368 -0.0817)
OKLCH	oklch(42.8% 0.09 245.8)
XYZ	xyz(7.3002, 7.9276, 20.5435)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D537D #7D471D

analogous

#1D7D77 #1D537D #1D237D

triadic

#1D537D #7D1D53 #537D1D

tetradic

#1D537D #771D7D #7D471D #237D1D

square

#1D537D #771D7D #7D471D #237D1D

split-complementary

#1D537D #7D1D23 #7D771D

monochromatic

#06111A #11324B #1D537D #2974AF #4193D3

Accessibility & contrast

On white

8.12

#1D537D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1D537D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D537D

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D537D	#FFFFFF	#000000	##FFFFFF
##1D537D	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)

#40557F

Deuteranopia (green-blind)

#324C7C

Tritanopia (blue-blind)

#005D62

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d537d;
/* rgb */ color: rgb(29, 83, 125);
/* oklch */ color: oklch(42.8% 0.090 245.8);

Tailwind

colors: {
  custom: {
    50: '#6783a3',
    500: '#1d537d',
    950: '#000000',
  },
}

SCSS

$custom: #1d537d;
$custom-light: #6783a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d537d",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 125
  },
  "hsl": {
    "h": 206.25,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.428,
    "c": 0.08956,
    "h": 245.8
  },
  "luminance": 0.07928
}

Semantic roles & 50–950 ramp

primary

#1D537D

secondary

#B17445

accent

#8A42E5

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D537D

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

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