#1D4D80#1D4D80

#1D4D80 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.5% C 0.100 H 252.6°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#1D4D80
RGB	rgb(29, 77, 128)
HSL	hsl(211, 63%, 31%)
HSV	hsv(211, 77%, 50%)
CMYK	cmyk(77.3%, 39.8%, 0%, 49.8%)
CIE-LAB	lab(32.09, 2.83, -33.40)
CIE-LCH	lch(32.09, 33.52, 274.85°)
OKLab	oklab(41.49% -0.0299 -0.0952)
OKLCH	oklch(41.49% 0.1 252.6)
XYZ	xyz(7.0554, 7.1267, 21.4216)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4D80 #80501D

analogous

#1D7E80 #1D4D80 #1E1D80

triadic

#1D4D80 #801D4D #4D801D

tetradic

#1D4D80 #801D7E #80501D #1D801E

square

#1D4D80 #801D7E #80501D #1D801E

split-complementary

#1D4D80 #801E1D #7E801D

monochromatic

#06111C #122F4E #1D4D80 #286BB2 #4389D4

Accessibility & contrast

On white

8.66

#1D4D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1D4D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4D80

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4D80	#FFFFFF	#000000	##FFFFFF
##1D4D80	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355082

Deuteranopia (green-blind)

#26477F

Tritanopia (blue-blind)

#005960

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d4d80;
/* rgb */ color: rgb(29, 77, 128);
/* oklch */ color: oklch(41.5% 0.100 252.6);

Tailwind

colors: {
  custom: {
    50: '#687ea5',
    500: '#1d4d80',
    950: '#000000',
  },
}

SCSS

$custom: #1d4d80;
$custom-light: #687ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4d80",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 128
  },
  "hsl": {
    "h": 210.909,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.41491,
    "c": 0.09981,
    "h": 252.6
  },
  "luminance": 0.07127
}

Semantic roles & 50–950 ramp

primary

#1D4D80

secondary

#B37E45

accent

#9642E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1D4D80

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

Preview Lab → · Contrast checker → · Palette generator →