#1D4C8B#1D4C8B

#1D4C8B is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 42.0% C 0.116 H 256.9°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C8B
RGB	rgb(29, 76, 139)
HSL	hsl(214, 65%, 33%)
HSV	hsv(214, 79%, 55%)
CMYK	cmyk(79.1%, 45.3%, 0%, 45.5%)
CIE-LAB	lab(32.47, 7.91, -39.59)
CIE-LCH	lch(32.47, 40.37, 281.30°)
OKLab	oklab(42% -0.0263 -0.1134)
OKLCH	oklch(42% 0.116 256.9)
XYZ	xyz(7.7496, 7.2933, 25.4204)
Luminance	0.0729 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C8B #8B5C1D

analogous

#1D838B #1D4C8B #251D8B

triadic

#1D4C8B #8B1D4C #4C8B1D

tetradic

#1D4C8B #8B1D83 #8B5C1D #1D8B25

square

#1D4C8B #8B1D83 #8B5C1D #1D8B25

split-complementary

#1D4C8B #8B251D #838B1D

monochromatic

#081526 #123058 #1D4C8B #2868BE #4987D9

Accessibility & contrast

On white

8.54

#1D4C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1D4C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C8B

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C8B	#FFFFFF	#000000	##FFFFFF
##1D4C8B	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C528D

Deuteranopia (green-blind)

#16488A

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d4c8b;
/* rgb */ color: rgb(29, 76, 139);
/* oklch */ color: oklch(42.0% 0.116 256.9);

Tailwind

colors: {
  custom: {
    50: '#6a7dad',
    500: '#1d4c8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c8b;
$custom-light: #6a7dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c8b",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 139
  },
  "hsl": {
    "h": 214.364,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42001,
    "c": 0.11646,
    "h": 256.9
  },
  "luminance": 0.07294
}

Semantic roles & 50–950 ramp

primary

#1D4C8B

secondary

#BB8A49

accent

#A03FE8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4C8B

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

Preview Lab → · Contrast checker → · Palette generator →