#1C4E5B#1C4E5B

#1C4E5B is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.6% C 0.057 H 218.0°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E5B
RGB	rgb(28, 78, 91)
HSL	hsl(192, 53%, 23%)
HSV	hsv(192, 69%, 36%)
CMYK	cmyk(69.2%, 14.3%, 0%, 64.3%)
CIE-LAB	lab(30.52, -12.05, -12.58)
CIE-LCH	lch(30.52, 17.42, 226.23°)
OKLab	oklab(39.63% -0.0448 -0.035)
OKLCH	oklch(39.63% 0.057 218)
XYZ	xyz(5.0908, 6.4504, 10.8723)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E5B #5B291C

analogous

#1C5B48 #1C4E5B #1C2E5B

triadic

#1C4E5B #5B1C4E #4E5B1C

tetradic

#1C4E5B #481C5B #5B291C #2E5B1C

square

#1C4E5B #481C5B #5B291C #2E5B1C

split-complementary

#1C4E5B #5B1C2E #5B481C

monochromatic

#071417 #0E262C #1C4E5B #2A768A #399EB9

Accessibility & contrast

On white

9.17

#1C4E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1C4E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E5B

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E5B	#FFFFFF	#000000	##FFFFFF
##1C4E5B	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5C

Deuteranopia (green-blind)

#3D455B

Tritanopia (blue-blind)

#005352

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4e5b;
/* rgb */ color: rgb(28, 78, 91);
/* oklch */ color: oklch(39.6% 0.057 218.0);

Tailwind

colors: {
  custom: {
    50: '#617f89',
    500: '#1c4e5b',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e5b;
$custom-light: #617f89;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e5b",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 91
  },
  "hsl": {
    "h": 192.381,
    "s": 52.941,
    "l": 23.333
  },
  "oklch": {
    "l": 0.39625,
    "c": 0.05689,
    "h": 218
  },
  "luminance": 0.06451
}

Semantic roles & 50–950 ramp

primary

#1C4E5B

secondary

#905242

accent

#694BDC

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1C4E5B

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

Preview Lab → · Contrast checker → · Palette generator →