#1C4F7B#1C4F7B

#1C4F7B is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.6% C 0.091 H 248.2°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F7B
RGB	rgb(28, 79, 123)
HSL	hsl(208, 63%, 30%)
HSV	hsv(208, 77%, 48%)
CMYK	cmyk(77.2%, 35.8%, 0%, 51.8%)
CIE-LAB	lab(32.41, -0.60, -29.80)
CIE-LCH	lch(32.41, 29.81, 268.85°)
OKLab	oklab(41.64% -0.0339 -0.0847)
OKLCH	oklch(41.64% 0.091 248.2)
XYZ	xyz(6.8487, 7.2681, 19.7770)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F7B #7B481C

analogous

#1C7B77 #1C4F7B #1C207B

triadic

#1C4F7B #7B1C4F #4F7B1C

tetradic

#1C4F7B #771C7B #7B481C #207B1C

square

#1C4F7B #771C7B #7B481C #207B1C

split-complementary

#1C4F7B #7B1C20 #7B771C

monochromatic

#061019 #112F49 #1C4F7B #276FAD #3E8ED3

Accessibility & contrast

On white

8.56

#1C4F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1C4F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F7B

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F7B	#FFFFFF	#000000	##FFFFFF
##1C4F7B	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B517D

Deuteranopia (green-blind)

#2D487A

Tritanopia (blue-blind)

#005A5F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4f7b;
/* rgb */ color: rgb(28, 79, 123);
/* oklch */ color: oklch(41.6% 0.091 248.2);

Tailwind

colors: {
  custom: {
    50: '#6680a1',
    500: '#1c4f7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f7b;
$custom-light: #6680a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f7b",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 123
  },
  "hsl": {
    "h": 207.789,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.41636,
    "c": 0.09122,
    "h": 248.2
  },
  "luminance": 0.07269
}

Semantic roles & 50–950 ramp

primary

#1C4F7B

secondary

#AF7544

accent

#8E42E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1C4F7B

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

Preview Lab → · Contrast checker → · Palette generator →