#1C4B7B#1C4B7B

#1C4B7B is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.6% C 0.095 H 251.8°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B7B
RGB	rgb(28, 75, 123)
HSL	hsl(210, 63%, 30%)
HSV	hsv(210, 77%, 48%)
CMYK	cmyk(77.2%, 39%, 0%, 51.8%)
CIE-LAB	lab(31.13, 2.03, -31.82)
CIE-LCH	lch(31.13, 31.89, 273.64°)
OKLab	oklab(40.64% -0.0299 -0.0907)
OKLCH	oklch(40.64% 0.095 251.8)
XYZ	xyz(6.5688, 6.7083, 19.6837)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B7B #7B4C1C

analogous

#1C7B7B #1C4B7B #1D1C7B

triadic

#1C4B7B #7B1C4B #4B7B1C

tetradic

#1C4B7B #7B1C7B #7B4C1C #1C7B1D

square

#1C4B7B #7B1C7B #7B4C1C #1C7B1D

split-complementary

#1C4B7B #7B1D1C #7B7B1C

monochromatic

#060F19 #112D49 #1C4B7B #2769AD #3E88D3

Accessibility & contrast

On white

8.97

#1C4B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1C4B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B7B

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B7B	#FFFFFF	#000000	##FFFFFF
##1C4B7B	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354E7D

Deuteranopia (green-blind)

#26457A

Tritanopia (blue-blind)

#00565D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c4b7b;
/* rgb */ color: rgb(28, 75, 123);
/* oklch */ color: oklch(40.6% 0.095 251.8);

Tailwind

colors: {
  custom: {
    50: '#667ca1',
    500: '#1c4b7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b7b;
$custom-light: #667ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b7b",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 123
  },
  "hsl": {
    "h": 210.316,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.40635,
    "c": 0.09545,
    "h": 251.8
  },
  "luminance": 0.06709
}

Semantic roles & 50–950 ramp

primary

#1C4B7B

secondary

#AF7A44

accent

#9542E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #1C4B7B

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

Preview Lab → · Contrast checker → · Palette generator →