#1D4B74#1D4B74

#1D4B74 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.2% C 0.085 H 248.6°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B74
RGB	rgb(29, 75, 116)
HSL	hsl(208, 60%, 28%)
HSV	hsv(208, 75%, 45%)
CMYK	cmyk(75%, 35.3%, 0%, 54.5%)
CIE-LAB	lab(30.77, -0.60, -28.02)
CIE-LCH	lch(30.77, 28.03, 268.78°)
OKLab	oklab(40.23% -0.0312 -0.0795)
OKLCH	oklch(40.23% 0.085 248.6)
XYZ	xyz(6.1740, 6.5536, 17.4592)
Luminance	0.0655 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B74 #74461D

analogous

#1D7471 #1D4B74 #1D1F74

triadic

#1D4B74 #741D4B #4B741D

tetradic

#1D4B74 #711D74 #74461D #1F741D

square

#1D4B74 #711D74 #74461D #1F741D

split-complementary

#1D4B74 #741D1F #74711D

monochromatic

#061018 #112B43 #1D4B74 #296BA5 #3D8ACE

Accessibility & contrast

On white

9.09

#1D4B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1D4B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B74

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B74	#FFFFFF	#000000	##FFFFFF
##1D4B74	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384D76

Deuteranopia (green-blind)

#2C4573

Tritanopia (blue-blind)

#00555A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d4b74;
/* rgb */ color: rgb(29, 75, 116);
/* oklch */ color: oklch(40.2% 0.085 248.6);

Tailwind

colors: {
  custom: {
    50: '#657d9c',
    500: '#1d4b74',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b74;
$custom-light: #657d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b74",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 116
  },
  "hsl": {
    "h": 208.276,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40228,
    "c": 0.08545,
    "h": 248.6
  },
  "luminance": 0.06554
}

Semantic roles & 50–950 ramp

primary

#1D4B74

secondary

#A87445

accent

#8F45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4B74

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

Preview Lab → · Contrast checker → · Palette generator →