#1C4E73#1C4E73

#1C4E73 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.9% C 0.082 H 244.3°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E73
RGB	rgb(28, 78, 115)
HSL	hsl(206, 61%, 28%)
HSV	hsv(206, 76%, 45%)
CMYK	cmyk(75.7%, 32.2%, 0%, 54.9%)
CIE-LAB	lab(31.65, -3.09, -26.00)
CIE-LCH	lch(31.65, 26.18, 263.23°)
OKLab	oklab(40.9% -0.0354 -0.0736)
OKLCH	oklch(40.9% 0.082 244.3)
XYZ	xyz(6.2966, 6.9328, 17.2226)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E73 #73411C

analogous

#1C736C #1C4E73 #1C2373

triadic

#1C4E73 #731C4E #4E731C

tetradic

#1C4E73 #6C1C73 #73411C #23731C

square

#1C4E73 #6C1C73 #73411C #23731C

split-complementary

#1C4E73 #731C23 #736C1C

monochromatic

#061119 #102D42 #1C4E73 #286FA4 #3A90CF

Accessibility & contrast

On white

8.80

#1C4E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1C4E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E73

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E73	#FFFFFF	#000000	##FFFFFF
##1C4E73	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4F75

Deuteranopia (green-blind)

#314772

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4e73;
/* rgb */ color: rgb(28, 78, 115);
/* oklch */ color: oklch(40.9% 0.082 244.3);

Tailwind

colors: {
  custom: {
    50: '#657f9b',
    500: '#1c4e73',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e73;
$custom-light: #657f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e73",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 115
  },
  "hsl": {
    "h": 205.517,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.40898,
    "c": 0.08168,
    "h": 244.3
  },
  "luminance": 0.06933
}

Semantic roles & 50–950 ramp

primary

#1C4E73

secondary

#A76E43

accent

#8844E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1C4E73

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

Preview Lab → · Contrast checker → · Palette generator →