#1D4F8D#1D4F8D

#1D4F8D is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.9% C 0.116 H 255.7°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F8D
RGB	rgb(29, 79, 141)
HSL	hsl(213, 66%, 33%)
HSV	hsv(213, 79%, 55%)
CMYK	cmyk(79.4%, 44%, 0%, 44.7%)
CIE-LAB	lab(33.51, 6.70, -39.14)
CIE-LCH	lch(33.51, 39.71, 279.72°)
OKLab	oklab(42.85% -0.0286 -0.1121)
OKLCH	oklch(42.85% 0.116 255.7)
XYZ	xyz(8.1086, 7.7753, 26.2676)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F8D #8D5B1D

analogous

#1D878D #1D4F8D #231D8D

triadic

#1D4F8D #8D1D4F #4F8D1D

tetradic

#1D4F8D #8D1D87 #8D5B1D #1D8D23

square

#1D4F8D #8D1D87 #8D5B1D #1D8D23

split-complementary

#1D4F8D #8D231D #878D1D

monochromatic

#081627 #13335A #1D4F8D #276BC0 #4B8BDA

Accessibility & contrast

On white

8.22

#1D4F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1D4F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F8D

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F8D	#FFFFFF	#000000	##FFFFFF
##1D4F8D	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30548F

Deuteranopia (green-blind)

#1B4A8C

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1d4f8d;
/* rgb */ color: rgb(29, 79, 141);
/* oklch */ color: oklch(42.9% 0.116 255.7);

Tailwind

colors: {
  custom: {
    50: '#6b7faf',
    500: '#1d4f8d',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f8d;
$custom-light: #6b7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f8d",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 141
  },
  "hsl": {
    "h": 213.214,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42853,
    "c": 0.11565,
    "h": 255.7
  },
  "luminance": 0.07776
}

Semantic roles & 50–950 ramp

primary

#1D4F8D

secondary

#BC894A

accent

#9D3FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D4F8D

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

Preview Lab → · Contrast checker → · Palette generator →