#1D4E7B#1D4E7B

#1D4E7B is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.4% C 0.092 H 249.4°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E7B
RGB	rgb(29, 78, 123)
HSL	hsl(209, 62%, 30%)
HSV	hsv(209, 76%, 48%)
CMYK	cmyk(76.4%, 36.6%, 0%, 51.8%)
CIE-LAB	lab(32.12, 0.20, -30.25)
CIE-LCH	lch(32.12, 30.25, 270.37°)
OKLab	oklab(41.42% -0.0322 -0.086)
OKLCH	oklch(41.42% 0.092 249.4)
XYZ	xyz(6.8049, 7.1393, 19.7544)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E7B #7B4A1D

analogous

#1D7B79 #1D4E7B #1D1F7B

triadic

#1D4E7B #7B1D4E #4E7B1D

tetradic

#1D4E7B #791D7B #7B4A1D #1F7B1D

square

#1D4E7B #791D7B #7B4A1D #1F7B1D

split-complementary

#1D4E7B #7B1D1F #7B791D

monochromatic

#061019 #112F49 #1D4E7B #296DAD #408CD2

Accessibility & contrast

On white

8.65

#1D4E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1D4E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E7B

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E7B	#FFFFFF	#000000	##FFFFFF
##1D4E7B	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39507D

Deuteranopia (green-blind)

#2C487A

Tritanopia (blue-blind)

#00595E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d4e7b;
/* rgb */ color: rgb(29, 78, 123);
/* oklch */ color: oklch(41.4% 0.092 249.4);

Tailwind

colors: {
  custom: {
    50: '#677fa1',
    500: '#1d4e7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e7b;
$custom-light: #677fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e7b",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 123
  },
  "hsl": {
    "h": 208.723,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41419,
    "c": 0.09186,
    "h": 249.4
  },
  "luminance": 0.0714
}

Semantic roles & 50–950 ramp

primary

#1D4E7B

secondary

#AF7845

accent

#9043E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1D4E7B

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

Preview Lab → · Contrast checker → · Palette generator →