#1C537F#1C537F

#1C537F is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.9% C 0.093 H 246.6°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#1C537F
RGB	rgb(28, 83, 127)
HSL	hsl(207, 64%, 30%)
HSV	hsv(207, 78%, 50%)
CMYK	cmyk(78%, 34.6%, 0%, 50.2%)
CIE-LAB	lab(33.91, -1.61, -29.91)
CIE-LCH	lch(33.91, 29.95, 266.91°)
OKLab	oklab(42.89% -0.0367 -0.0849)
OKLCH	oklch(42.89% 0.093 246.6)
XYZ	xyz(7.4014, 7.9648, 21.2218)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C537F #7F481C

analogous

#1C7F79 #1C537F #1C217F

triadic

#1C537F #7F1C53 #537F1C

tetradic

#1C537F #791C7F #7F481C #217F1C

square

#1C537F #791C7F #7F481C #217F1C

split-complementary

#1C537F #7F1C21 #7F791C

monochromatic

#06111B #11324D #1C537F #2774B1 #4093D5

Accessibility & contrast

On white

8.10

#1C537F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1C537F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C537F

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C537F	#FFFFFF	#000000	##FFFFFF
##1C537F	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5581

Deuteranopia (green-blind)

#314C7E

Tritanopia (blue-blind)

#005E63

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c537f;
/* rgb */ color: rgb(28, 83, 127);
/* oklch */ color: oklch(42.9% 0.093 246.6);

Tailwind

colors: {
  custom: {
    50: '#6783a4',
    500: '#1c537f',
    950: '#000000',
  },
}

SCSS

$custom: #1c537f;
$custom-light: #6783a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c537f",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 127
  },
  "hsl": {
    "h": 206.667,
    "s": 63.871,
    "l": 30.392
  },
  "oklch": {
    "l": 0.42888,
    "c": 0.09253,
    "h": 246.6
  },
  "luminance": 0.07966
}

Semantic roles & 50–950 ramp

primary

#1C537F

secondary

#B37544

accent

#8B41E7

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C537F

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

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