#1C5584#1C5584

#1C5584 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.7% C 0.097 H 247.5°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C5584
RGB	rgb(28, 85, 132)
HSL	hsl(207, 65%, 31%)
HSV	hsv(207, 79%, 52%)
CMYK	cmyk(78.8%, 35.6%, 0%, 48.2%)
CIE-LAB	lab(34.82, -0.93, -31.55)
CIE-LCH	lch(34.82, 31.56, 268.31°)
OKLab	oklab(43.7% -0.0372 -0.0897)
OKLCH	oklch(43.7% 0.097 247.5)
XYZ	xyz(7.8907, 8.4089, 23.0325)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5584 #844B1C

analogous

#1C847F #1C5584 #1C2184

triadic

#1C5584 #841C55 #55841C

tetradic

#1C5584 #7F1C84 #844B1C #21841C

square

#1C5584 #7F1C84 #844B1C #21841C

split-complementary

#1C5584 #841C21 #847F1C

monochromatic

#07141F #113452 #1C5584 #2776B6 #4394D7

Accessibility & contrast

On white

7.83

#1C5584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1C5584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5584

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5584	#FFFFFF	#000000	##FFFFFF
##1C5584	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5786

Deuteranopia (green-blind)

#304E83

Tritanopia (blue-blind)

#006066

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c5584;
/* rgb */ color: rgb(28, 85, 132);
/* oklch */ color: oklch(43.7% 0.097 247.5);

Tailwind

colors: {
  custom: {
    50: '#6984a8',
    500: '#1c5584',
    950: '#000000',
  },
}

SCSS

$custom: #1c5584;
$custom-light: #6984a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5584",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 132
  },
  "hsl": {
    "h": 207.115,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.43695,
    "c": 0.0971,
    "h": 247.5
  },
  "luminance": 0.0841
}

Semantic roles & 50–950 ramp

primary

#1C5584

secondary

#B77845

accent

#8C40E8

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C5584

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

Preview Lab → · Contrast checker → · Palette generator →