#1C4B79#1C4B79

#1C4B79 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.5% C 0.093 H 250.8°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B79
RGB	rgb(28, 75, 121)
HSL	hsl(210, 62%, 29%)
HSV	hsv(210, 77%, 47%)
CMYK	cmyk(76.9%, 38%, 0%, 52.5%)
CIE-LAB	lab(31.02, 1.23, -30.76)
CIE-LCH	lch(31.02, 30.78, 272.29°)
OKLab	oklab(40.51% -0.0304 -0.0875)
OKLCH	oklch(40.51% 0.093 250.8)
XYZ	xyz(6.4449, 6.6588, 19.0311)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B79 #794A1C

analogous

#1C7979 #1C4B79 #1C1D79

triadic

#1C4B79 #791C4B #4B791C

tetradic

#1C4B79 #791C79 #794A1C #1D791C

square

#1C4B79 #791C79 #794A1C #1D791C

split-complementary

#1C4B79 #791C1D #79791C

monochromatic

#060F19 #102C47 #1C4B79 #286AAB #3D89D2

Accessibility & contrast

On white

9.01

#1C4B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1C4B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B79

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B79	#FFFFFF	#000000	##FFFFFF
##1C4B79	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364E7B

Deuteranopia (green-blind)

#284578

Tritanopia (blue-blind)

#00565C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c4b79;
/* rgb */ color: rgb(28, 75, 121);
/* oklch */ color: oklch(40.5% 0.093 250.8);

Tailwind

colors: {
  custom: {
    50: '#667ca0',
    500: '#1c4b79',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b79;
$custom-light: #667ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b79",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 121
  },
  "hsl": {
    "h": 209.677,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.40506,
    "c": 0.09269,
    "h": 250.8
  },
  "luminance": 0.0666
}

Semantic roles & 50–950 ramp

primary

#1C4B79

secondary

#AD7844

accent

#9342E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1C4B79

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

Preview Lab → · Contrast checker → · Palette generator →