#1C4F84#1C4F84

#1C4F84 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.2% C 0.103 H 252.3°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1C4F84
RGB	rgb(28, 79, 132)
HSL	hsl(211, 65%, 31%)
HSV	hsv(211, 79%, 52%)
CMYK	cmyk(78.8%, 40.2%, 0%, 48.2%)
CIE-LAB	lab(32.93, 2.97, -34.55)
CIE-LCH	lch(32.93, 34.68, 274.92°)
OKLab	oklab(42.21% -0.0314 -0.0986)
OKLCH	oklch(42.21% 0.103 252.3)
XYZ	xyz(7.4382, 7.5039, 22.8817)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4F84 #84511C

analogous

#1C8384 #1C4F84 #1D1C84

triadic

#1C4F84 #841C4F #4F841C

tetradic

#1C4F84 #841C83 #84511C #1C841D

square

#1C4F84 #841C83 #84511C #1C841D

split-complementary

#1C4F84 #841D1C #83841C

monochromatic

#07131F #113152 #1C4F84 #276DB6 #438CD7

Accessibility & contrast

On white

8.40

#1C4F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1C4F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4F84

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4F84	#FFFFFF	#000000	##FFFFFF
##1C4F84	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365386

Deuteranopia (green-blind)

#264983

Tritanopia (blue-blind)

#005C63

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c4f84;
/* rgb */ color: rgb(28, 79, 132);
/* oklch */ color: oklch(42.2% 0.103 252.3);

Tailwind

colors: {
  custom: {
    50: '#687fa8',
    500: '#1c4f84',
    950: '#000000',
  },
}

SCSS

$custom: #1c4f84;
$custom-light: #687fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4f84",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 132
  },
  "hsl": {
    "h": 210.577,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.42211,
    "c": 0.10345,
    "h": 252.3
  },
  "luminance": 0.07505
}

Semantic roles & 50–950 ramp

primary

#1C4F84

secondary

#B77F45

accent

#9640E8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C4F84

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

Preview Lab → · Contrast checker → · Palette generator →