#1C4C7B#1C4C7B

#1C4C7B is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.9% C 0.094 H 250.9°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1C4C7B
RGB	rgb(28, 76, 123)
HSL	hsl(210, 63%, 30%)
HSV	hsv(210, 77%, 48%)
CMYK	cmyk(77.2%, 38.2%, 0%, 51.8%)
CIE-LAB	lab(31.45, 1.36, -31.32)
CIE-LCH	lch(31.45, 31.35, 272.49°)
OKLab	oklab(40.88% -0.0309 -0.0892)
OKLCH	oklch(40.88% 0.094 250.9)
XYZ	xyz(6.6371, 6.8451, 19.7065)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4C7B #7B4B1C

analogous

#1C7B7B #1C4C7B #1C1D7B

triadic

#1C4C7B #7B1C4C #4C7B1C

tetradic

#1C4C7B #7B1C7B #7B4B1C #1D7B1C

square

#1C4C7B #7B1C7B #7B4B1C #1D7B1C

split-complementary

#1C4C7B #7B1C1D #7B7B1C

monochromatic

#060F19 #112D49 #1C4C7B #276BAD #3E89D3

Accessibility & contrast

On white

8.86

#1C4C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1C4C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4C7B

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4C7B	#FFFFFF	#000000	##FFFFFF
##1C4C7B	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364F7D

Deuteranopia (green-blind)

#28467A

Tritanopia (blue-blind)

#00575D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4c7b;
/* rgb */ color: rgb(28, 76, 123);
/* oklch */ color: oklch(40.9% 0.094 250.9);

Tailwind

colors: {
  custom: {
    50: '#667da1',
    500: '#1c4c7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c4c7b;
$custom-light: #667da1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4c7b",
  "rgb": {
    "r": 28,
    "g": 76,
    "b": 123
  },
  "hsl": {
    "h": 209.684,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.40884,
    "c": 0.09436,
    "h": 250.9
  },
  "luminance": 0.06846
}

Semantic roles & 50–950 ramp

primary

#1C4C7B

secondary

#AF7944

accent

#9342E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #1C4C7B

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

Preview Lab → · Contrast checker → · Palette generator →