#1C537B#1C537B

#1C537B is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.6% C 0.087 H 244.2°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#1C537B
RGB	rgb(28, 83, 123)
HSL	hsl(205, 63%, 30%)
HSV	hsv(205, 77%, 48%)
CMYK	cmyk(77.2%, 32.5%, 0%, 51.8%)
CIE-LAB	lab(33.70, -3.17, -27.77)
CIE-LCH	lch(33.70, 27.95, 263.48°)
OKLab	oklab(42.65% -0.038 -0.0787)
OKLCH	oklch(42.65% 0.087 244.2)
XYZ	xyz(7.1459, 7.8626, 19.8761)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C537B #7B441C

analogous

#1C7B74 #1C537B #1C247B

triadic

#1C537B #7B1C53 #537B1C

tetradic

#1C537B #741C7B #7B441C #247B1C

square

#1C537B #741C7B #7B441C #247B1C

split-complementary

#1C537B #7B1C24 #7B741C

monochromatic

#061119 #113149 #1C537B #2775AD #3E94D3

Accessibility & contrast

On white

8.16

#1C537B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1C537B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C537B

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C537B	#FFFFFF	#000000	##FFFFFF
##1C537B	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41547D

Deuteranopia (green-blind)

#334B7A

Tritanopia (blue-blind)

#005D61

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c537b;
/* rgb */ color: rgb(28, 83, 123);
/* oklch */ color: oklch(42.6% 0.087 244.2);

Tailwind

colors: {
  custom: {
    50: '#6783a1',
    500: '#1c537b',
    950: '#000000',
  },
}

SCSS

$custom: #1c537b;
$custom-light: #6783a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c537b",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 123
  },
  "hsl": {
    "h": 205.263,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.42649,
    "c": 0.0874,
    "h": 244.2
  },
  "luminance": 0.07863
}

Semantic roles & 50–950 ramp

primary

#1C537B

secondary

#AF7144

accent

#8742E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1C537B

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

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