#1C557E#1C557E

#1C557E is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.3% C 0.089 H 244.1°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#1C557E
RGB	rgb(28, 85, 126)
HSL	hsl(205, 64%, 30%)
HSV	hsv(205, 78%, 49%)
CMYK	cmyk(77.8%, 32.5%, 0%, 50.6%)
CIE-LAB	lab(34.50, -3.28, -28.36)
CIE-LCH	lch(34.50, 28.55, 263.41°)
OKLab	oklab(43.33% -0.0391 -0.0804)
OKLCH	oklch(43.33% 0.089 244.1)
XYZ	xyz(7.4918, 8.2494, 20.9321)
Luminance	0.0825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C557E #7E451C

analogous

#1C7E76 #1C557E #1C247E

triadic

#1C557E #7E1C55 #557E1C

tetradic

#1C557E #761C7E #7E451C #247E1C

square

#1C557E #761C7E #7E451C #247E1C

split-complementary

#1C557E #7E1C24 #7E761C

monochromatic

#06111A #11334C #1C557E #2777B0 #4096D5

Accessibility & contrast

On white

7.92

#1C557E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1C557E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C557E

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C557E	#FFFFFF	#000000	##FFFFFF
##1C557E	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425680

Deuteranopia (green-blind)

#344D7D

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c557e;
/* rgb */ color: rgb(28, 85, 126);
/* oklch */ color: oklch(43.3% 0.089 244.1);

Tailwind

colors: {
  custom: {
    50: '#6784a3',
    500: '#1c557e',
    950: '#000000',
  },
}

SCSS

$custom: #1c557e;
$custom-light: #6784a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c557e",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 126
  },
  "hsl": {
    "h": 205.102,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.43334,
    "c": 0.08939,
    "h": 244.1
  },
  "luminance": 0.0825
}

Semantic roles & 50–950 ramp

primary

#1C557E

secondary

#B27244

accent

#8641E7

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C557E

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

Preview Lab → · Contrast checker → · Palette generator →