#1C537D#1C537D

#1C537D is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.8% C 0.090 H 245.5°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1C537D
RGB	rgb(28, 83, 125)
HSL	hsl(206, 63%, 30%)
HSV	hsv(206, 78%, 49%)
CMYK	cmyk(77.6%, 33.6%, 0%, 51%)
CIE-LAB	lab(33.80, -2.39, -28.84)
CIE-LCH	lch(33.80, 28.94, 265.26°)
OKLab	oklab(42.77% -0.0374 -0.0818)
OKLCH	oklch(42.77% 0.09 245.5)
XYZ	xyz(7.2724, 7.9132, 20.5422)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C537D #7D461C

analogous

#1C7D76 #1C537D #1C237D

triadic

#1C537D #7D1C53 #537D1C

tetradic

#1C537D #761C7D #7D461C #237D1C

square

#1C537D #761C7D #7D461C #237D1C

split-complementary

#1C537D #7D1C23 #7D761C

monochromatic

#061119 #11324B #1C537D #2774AF #3F94D4

Accessibility & contrast

On white

8.13

#1C537D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1C537D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C537D

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C537D	#FFFFFF	#000000	##FFFFFF
##1C537D	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40547F

Deuteranopia (green-blind)

#324B7C

Tritanopia (blue-blind)

#005D62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c537d;
/* rgb */ color: rgb(28, 83, 125);
/* oklch */ color: oklch(42.8% 0.090 245.5);

Tailwind

colors: {
  custom: {
    50: '#6783a3',
    500: '#1c537d',
    950: '#000000',
  },
}

SCSS

$custom: #1c537d;
$custom-light: #6783a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c537d",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 125
  },
  "hsl": {
    "h": 205.979,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.42768,
    "c": 0.08995,
    "h": 245.5
  },
  "luminance": 0.07914
}

Semantic roles & 50–950 ramp

primary

#1C537D

secondary

#B17344

accent

#8941E6

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C537D

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

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