#1D536B#1D536B

#1D536B is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.8% C 0.069 H 230.9°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D536B
RGB	rgb(29, 83, 107)
HSL	hsl(198, 57%, 27%)
HSV	hsv(198, 73%, 42%)
CMYK	cmyk(72.9%, 22.4%, 0%, 58%)
CIE-LAB	lab(32.94, -9.10, -18.98)
CIE-LCH	lch(32.94, 21.05, 244.39°)
OKLab	oklab(41.8% -0.0432 -0.0532)
OKLCH	oklch(41.8% 0.069 230.9)
XYZ	xyz(6.2527, 7.5086, 15.0268)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D536B #6B351D

analogous

#1D6B5C #1D536B #1D2C6B

triadic

#1D536B #6B1D53 #536B1D

tetradic

#1D536B #5C1D6B #6B351D #2C6B1D

square

#1D536B #5C1D6B #6B351D #2C6B1D

split-complementary

#1D536B #6B1D2C #6B5C1D

monochromatic

#071318 #102E3B #1D536B #2A789B #399DC9

Accessibility & contrast

On white

8.39

#1D536B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1D536B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D536B

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D536B	#FFFFFF	#000000	##FFFFFF
##1D536B	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47526C

Deuteranopia (green-blind)

#3C4A6B

Tritanopia (blue-blind)

#005A5B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d536b;
/* rgb */ color: rgb(29, 83, 107);
/* oklch */ color: oklch(41.8% 0.069 230.9);

Tailwind

colors: {
  custom: {
    50: '#648395',
    500: '#1d536b',
    950: '#000000',
  },
}

SCSS

$custom: #1d536b;
$custom-light: #648395;
$custom-dark: #000000;

JSON

{
  "hex": "#1d536b",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 107
  },
  "hsl": {
    "h": 198.462,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.41797,
    "c": 0.06858,
    "h": 230.9
  },
  "luminance": 0.07509
}

Semantic roles & 50–950 ramp

primary

#1D536B

secondary

#A06044

accent

#7647E1

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1D536B

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

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