#1C5E8B#1C5E8B

#1C5E8B is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.4% C 0.098 H 243.3°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#1C5E8B
RGB	rgb(28, 94, 139)
HSL	hsl(204, 66%, 33%)
HSV	hsv(204, 80%, 55%)
CMYK	cmyk(79.9%, 32.4%, 0%, 45.5%)
CIE-LAB	lab(38.05, -3.90, -30.72)
CIE-LCH	lch(38.05, 30.97, 262.77°)
OKLab	oklab(46.36% -0.0438 -0.0871)
OKLCH	oklch(46.36% 0.098 243.3)
XYZ	xyz(9.1400, 10.1153, 25.8918)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5E8B #8B491C

analogous

#1C8B80 #1C5E8B #1C278B

triadic

#1C5E8B #8B1C5E #5E8B1C

tetradic

#1C5E8B #801C8B #8B491C #278B1C

square

#1C5E8B #801C8B #8B491C #278B1C

split-complementary

#1C5E8B #8B1C27 #8B801C

monochromatic

#071925 #123C58 #1C5E8B #2680BE #479FDA

Accessibility & contrast

On white

6.95

#1C5E8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1C5E8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5E8B

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5E8B	#FFFFFF	#000000	##FFFFFF
##1C5E8B	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495F8D

Deuteranopia (green-blind)

#3A558A

Tritanopia (blue-blind)

#00696E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1c5e8b;
/* rgb */ color: rgb(28, 94, 139);
/* oklch */ color: oklch(46.4% 0.098 243.3);

Tailwind

colors: {
  custom: {
    50: '#6a8bad',
    500: '#1c5e8b',
    950: '#000000',
  },
}

SCSS

$custom: #1c5e8b;
$custom-light: #6a8bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5e8b",
  "rgb": {
    "r": 28,
    "g": 94,
    "b": 139
  },
  "hsl": {
    "h": 204.324,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.46364,
    "c": 0.09755,
    "h": 243.3
  },
  "luminance": 0.10116
}

Semantic roles & 50–950 ramp

primary

#1C5E8B

secondary

#BC7647

accent

#843EE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #1C5E8B

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

Preview Lab → · Contrast checker → · Palette generator →