#1F536D#1F536D

#1F536D is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.0% C 0.070 H 233.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F536D
RGB	rgb(31, 83, 109)
HSL	hsl(200, 56%, 27%)
HSV	hsv(200, 72%, 43%)
CMYK	cmyk(71.6%, 23.9%, 0%, 57.3%)
CIE-LAB	lab(33.10, -8.02, -19.98)
CIE-LCH	lch(33.10, 21.53, 248.14°)
OKLab	oklab(41.97% -0.0412 -0.0561)
OKLCH	oklch(41.97% 0.07 233.7)
XYZ	xyz(6.4176, 7.5813, 15.5901)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F536D #6D391F

analogous

#1F6D60 #1F536D #1F2C6D

triadic

#1F536D #6D1F53 #536D1F

tetradic

#1F536D #601F6D #6D391F #2C6D1F

square

#1F536D #601F6D #6D391F #2C6D1F

split-complementary

#1F536D #6D1F2C #6D601F

monochromatic

#071218 #112F3D #1F536D #2D779D #3E9AC8

Accessibility & contrast

On white

8.35

#1F536D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1F536D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F536D

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F536D	#FFFFFF	#000000	##FFFFFF
##1F536D	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46526E

Deuteranopia (green-blind)

#3C4A6D

Tritanopia (blue-blind)

#005A5C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f536d;
/* rgb */ color: rgb(31, 83, 109);
/* oklch */ color: oklch(42.0% 0.070 233.7);

Tailwind

colors: {
  custom: {
    50: '#658397',
    500: '#1f536d',
    950: '#000000',
  },
}

SCSS

$custom: #1f536d;
$custom-light: #658397;
$custom-dark: #000000;

JSON

{
  "hex": "#1f536d",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 109
  },
  "hsl": {
    "h": 200,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.41972,
    "c": 0.06959,
    "h": 233.7
  },
  "luminance": 0.07582
}

Semantic roles & 50–950 ramp

primary

#1F536D

secondary

#A16547

accent

#7B49DF

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1F536D

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

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