#1C558C#1C558C

#1C558C is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.108 H 251.1°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#1C558C
RGB	rgb(28, 85, 140)
HSL	hsl(209, 67%, 33%)
HSV	hsv(209, 80%, 55%)
CMYK	cmyk(80%, 39.3%, 0%, 45.1%)
CIE-LAB	lab(35.27, 2.23, -35.72)
CIE-LCH	lch(35.27, 35.79, 273.57°)
OKLab	oklab(44.2% -0.0349 -0.1019)
OKLCH	oklch(44.2% 0.108 251.1)
XYZ	xyz(8.4592, 8.6363, 26.0270)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C558C #8C531C

analogous

#1C8C8B #1C558C #1C1D8C

triadic

#1C558C #8C1C55 #558C1C

tetradic

#1C558C #8B1C8C #8C531C #1D8C1C

square

#1C558C #8B1C8C #8C531C #1D8C1C

split-complementary

#1C558C #8C1C1D #8C8B1C

monochromatic

#081726 #123659 #1C558C #2674BF #4893DA

Accessibility & contrast

On white

7.70

#1C558C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1C558C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C558C

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C558C	#FFFFFF	#000000	##FFFFFF
##1C558C	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B598E

Deuteranopia (green-blind)

#2A4E8B

Tritanopia (blue-blind)

#006269

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c558c;
/* rgb */ color: rgb(28, 85, 140);
/* oklch */ color: oklch(44.2% 0.108 251.1);

Tailwind

colors: {
  custom: {
    50: '#6a84ae',
    500: '#1c558c',
    950: '#000000',
  },
}

SCSS

$custom: #1c558c;
$custom-light: #6a84ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c558c",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 140
  },
  "hsl": {
    "h": 209.464,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.44199,
    "c": 0.10772,
    "h": 251.1
  },
  "luminance": 0.08637
}

Semantic roles & 50–950 ramp

primary

#1C558C

secondary

#BC8148

accent

#923EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1C558C

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

Preview Lab → · Contrast checker → · Palette generator →