#1C4E71#1C4E71

#1C4E71 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.8% C 0.079 H 242.9°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E71
RGB	rgb(28, 78, 113)
HSL	hsl(205, 60%, 28%)
HSV	hsv(205, 75%, 44%)
CMYK	cmyk(75.2%, 31%, 0%, 55.7%)
CIE-LAB	lab(31.55, -3.86, -24.91)
CIE-LCH	lch(31.55, 25.21, 261.18°)
OKLab	oklab(40.78% -0.0361 -0.0704)
OKLCH	oklch(40.78% 0.079 242.9)
XYZ	xyz(6.1828, 6.8872, 16.6231)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E71 #713F1C

analogous

#1C716A #1C4E71 #1C2371

triadic

#1C4E71 #711C4E #4E711C

tetradic

#1C4E71 #6A1C71 #713F1C #23711C

square

#1C4E71 #6A1C71 #713F1C #23711C

split-complementary

#1C4E71 #711C23 #716A1C

monochromatic

#061119 #102C40 #1C4E71 #2870A2 #3991CE

Accessibility & contrast

On white

8.83

#1C4E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1C4E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E71

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E71	#FFFFFF	#000000	##FFFFFF
##1C4E71	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4F73

Deuteranopia (green-blind)

#324770

Tritanopia (blue-blind)

#00575A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4e71;
/* rgb */ color: rgb(28, 78, 113);
/* oklch */ color: oklch(40.8% 0.079 242.9);

Tailwind

colors: {
  custom: {
    50: '#647f9a',
    500: '#1c4e71',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e71;
$custom-light: #647f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e71",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 113
  },
  "hsl": {
    "h": 204.706,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.40781,
    "c": 0.07915,
    "h": 242.9
  },
  "luminance": 0.06888
}

Semantic roles & 50–950 ramp

primary

#1C4E71

secondary

#A66C43

accent

#8644E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1C4E71

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

Preview Lab → · Contrast checker → · Palette generator →