#1C539E#1C539E

#1C539E is a dark, vivid cyan. Relative luminance 0.089; OKLCH L 45.0% C 0.135 H 257.5°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#1C539E
RGB	rgb(28, 83, 158)
HSL	hsl(215, 70%, 36%)
HSV	hsv(215, 82%, 62%)
CMYK	cmyk(82.3%, 47.5%, 0%, 38%)
CIE-LAB	lab(35.79, 10.75, -45.78)
CIE-LCH	lch(35.79, 47.03, 283.21°)
OKLab	oklab(44.97% -0.0292 -0.1315)
OKLCH	oklch(44.97% 0.135 257.5)
XYZ	xyz(9.7414, 8.9008, 33.5457)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C539E #9E671C

analogous

#1C949E #1C539E #261C9E

triadic

#1C539E #9E1C53 #539E1C

tetradic

#1C539E #9E1C94 #9E671C #1C9E26

square

#1C539E #9E1C94 #9E671C #1C9E26

split-complementary

#1C539E #9E261C #949E1C

monochromatic

#0A1C36 #13386A #1C539E #256ED2 #548FE1

Accessibility & contrast

On white

7.55

#1C539E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1C539E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C539E

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C539E	#FFFFFF	#000000	##FFFFFF
##1C539E	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5AA1

Deuteranopia (green-blind)

#034F9D

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1c539e;
/* rgb */ color: rgb(28, 83, 158);
/* oklch */ color: oklch(45.0% 0.135 257.5);

Tailwind

colors: {
  custom: {
    50: '#6f82bb',
    500: '#1c539e',
    950: '#000000',
  },
}

SCSS

$custom: #1c539e;
$custom-light: #6f82bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c539e",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 158
  },
  "hsl": {
    "h": 214.615,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44966,
    "c": 0.13472,
    "h": 257.5
  },
  "luminance": 0.08902
}

Semantic roles & 50–950 ramp

primary

#1C539E

secondary

#C49452

accent

#A23BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1C539E

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

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