#1C539B#1C539B

#1C539B is a dark, vivid cyan. Relative luminance 0.088; OKLCH L 44.7% C 0.131 H 256.8°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C539B
RGB	rgb(28, 83, 155)
HSL	hsl(214, 69%, 36%)
HSV	hsv(214, 82%, 61%)
CMYK	cmyk(81.9%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(35.59, 9.54, -44.30)
CIE-LCH	lch(35.59, 45.31, 282.16°)
OKLab	oklab(44.75% -0.0298 -0.1272)
OKLCH	oklch(44.75% 0.131 256.8)
XYZ	xyz(9.4864, 8.7988, 32.2024)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C539B #9B641C

analogous

#1C929B #1C539B #251C9B

triadic

#1C539B #9B1C53 #539B1C

tetradic

#1C539B #9B1C92 #9B641C #1C9B25

square

#1C539B #9B1C92 #9B641C #1C9B25

split-complementary

#1C539B #9B251C #929B1C

monochromatic

#091B33 #133767 #1C539B #256FCF #528FE0

Accessibility & contrast

On white

7.61

#1C539B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1C539B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C539B

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C539B	#FFFFFF	#000000	##FFFFFF
##1C539B	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5A9E

Deuteranopia (green-blind)

#0D4E9A

Tritanopia (blue-blind)

#00646F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1c539b;
/* rgb */ color: rgb(28, 83, 155);
/* oklch */ color: oklch(44.7% 0.131 256.8);

Tailwind

colors: {
  custom: {
    50: '#6e82b9',
    500: '#1c539b',
    950: '#000000',
  },
}

SCSS

$custom: #1c539b;
$custom-light: #6e82b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c539b",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 214.016,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.44749,
    "c": 0.13059,
    "h": 256.8
  },
  "luminance": 0.088
}

Semantic roles & 50–950 ramp

primary

#1C539B

secondary

#C39150

accent

#A03CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1C539B

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

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