#1C4E80#1C4E80

#1C4E80 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.7% C 0.099 H 251.5°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E80
RGB	rgb(28, 78, 128)
HSL	hsl(210, 64%, 31%)
HSV	hsv(210, 78%, 50%)
CMYK	cmyk(78.1%, 39.1%, 0%, 49.8%)
CIE-LAB	lab(32.38, 2.04, -32.95)
CIE-LCH	lch(32.38, 33.02, 273.54°)
OKLab	oklab(41.7% -0.0315 -0.0939)
OKLCH	oklch(41.7% 0.099 251.5)
XYZ	xyz(7.0981, 7.2533, 21.4438)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E80 #804E1C

analogous

#1C8080 #1C4E80 #1C1C80

triadic

#1C4E80 #801C4E #4E801C

tetradic

#1C4E80 #801C80 #804E1C #1C801C

square

#1C4E80 #801C80 #804E1C #1C801C

split-complementary

#1C4E80 #801C1C #80801C

monochromatic

#06111C #112F4E #1C4E80 #276DB2 #418BD5

Accessibility & contrast

On white

8.57

#1C4E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1C4E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E80

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E80	#FFFFFF	#000000	##FFFFFF
##1C4E80	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375182

Deuteranopia (green-blind)

#27487F

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4e80;
/* rgb */ color: rgb(28, 78, 128);
/* oklch */ color: oklch(41.7% 0.099 251.5);

Tailwind

colors: {
  custom: {
    50: '#687fa5',
    500: '#1c4e80',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e80;
$custom-light: #687fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e80",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 128
  },
  "hsl": {
    "h": 210,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41704,
    "c": 0.09905,
    "h": 251.5
  },
  "luminance": 0.07254
}

Semantic roles & 50–950 ramp

primary

#1C4E80

secondary

#B37C44

accent

#9441E7

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C4E80

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

Preview Lab → · Contrast checker → · Palette generator →