#1D4D8B#1D4D8B

#1D4D8B is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.2% C 0.115 H 256.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#1D4D8B
RGB	rgb(29, 77, 139)
HSL	hsl(214, 65%, 33%)
HSV	hsv(214, 79%, 55%)
CMYK	cmyk(79.1%, 44.6%, 0%, 45.5%)
CIE-LAB	lab(32.77, 7.24, -39.10)
CIE-LCH	lch(32.77, 39.76, 280.49°)
OKLab	oklab(42.24% -0.0272 -0.112)
OKLCH	oklch(42.24% 0.115 256.3)
XYZ	xyz(7.8191, 7.4321, 25.4435)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4D8B #8B5B1D

analogous

#1D848B #1D4D8B #241D8B

triadic

#1D4D8B #8B1D4D #4D8B1D

tetradic

#1D4D8B #8B1D84 #8B5B1D #1D8B24

square

#1D4D8B #8B1D84 #8B5B1D #1D8B24

split-complementary

#1D4D8B #8B241D #848B1D

monochromatic

#081526 #123158 #1D4D8B #2869BE #4988D9

Accessibility & contrast

On white

8.45

#1D4D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1D4D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4D8B

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4D8B	#FFFFFF	#000000	##FFFFFF
##1D4D8B	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E528D

Deuteranopia (green-blind)

#19488A

Tritanopia (blue-blind)

#005C65

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4d8b;
/* rgb */ color: rgb(29, 77, 139);
/* oklch */ color: oklch(42.2% 0.115 256.3);

Tailwind

colors: {
  custom: {
    50: '#6a7ead',
    500: '#1d4d8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d4d8b;
$custom-light: #6a7ead;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4d8b",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 139
  },
  "hsl": {
    "h": 213.818,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42238,
    "c": 0.11524,
    "h": 256.3
  },
  "luminance": 0.07433
}

Semantic roles & 50–950 ramp

primary

#1D4D8B

secondary

#BB8949

accent

#9F3FE8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4D8B

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

Preview Lab → · Contrast checker → · Palette generator →