#1C4F8A#1C4F8A

#1C4F8A is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.6% C 0.112 H 254.5°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F8A
RGB	rgb(28, 79, 138)
HSL	hsl(212, 66%, 33%)
HSV	hsv(212, 80%, 54%)
CMYK	cmyk(79.7%, 42.8%, 0%, 45.9%)
CIE-LAB	lab(33.29, 5.38, -37.66)
CIE-LCH	lch(33.29, 38.04, 278.13°)
OKLab	oklab(42.61% -0.0299 -0.1077)
OKLCH	oklch(42.61% 0.112 254.5)
XYZ	xyz(7.8606, 7.6729, 25.1066)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F8A #8A571C

analogous

#1C868A #1C4F8A #201C8A

triadic

#1C4F8A #8A1C4F #4F8A1C

tetradic

#1C4F8A #8A1C86 #8A571C #1C8A20

square

#1C4F8A #8A1C86 #8A571C #1C8A20

split-complementary

#1C4F8A #8A201C #868A1C

monochromatic

#071524 #123257 #1C4F8A #266CBD #478BDA

Accessibility & contrast

On white

8.28

#1C4F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1C4F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F8A

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F8A	#FFFFFF	#000000	##FFFFFF
##1C4F8A	1.00	8.28	2.53	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548C

Deuteranopia (green-blind)

#1F4A89

Tritanopia (blue-blind)

#005D65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c4f8a;
/* rgb */ color: rgb(28, 79, 138);
/* oklch */ color: oklch(42.6% 0.112 254.5);

Tailwind

colors: {
  custom: {
    50: '#6a7fac',
    500: '#1c4f8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f8a;
$custom-light: #6a7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f8a",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 138
  },
  "hsl": {
    "h": 212.182,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.42614,
    "c": 0.11177,
    "h": 254.5
  },
  "luminance": 0.07674
}

Semantic roles & 50–950 ramp

primary

#1C4F8A

secondary

#BB8546

accent

#9A3FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1C4F8A

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

Preview Lab → · Contrast checker → · Palette generator →