#1D4C71#1D4C71

#1D4C71 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.3% C 0.080 H 245.6°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C71
RGB	rgb(29, 76, 113)
HSL	hsl(206, 59%, 28%)
HSV	hsv(206, 74%, 44%)
CMYK	cmyk(74.3%, 32.7%, 0%, 55.7%)
CIE-LAB	lab(30.93, -2.42, -25.88)
CIE-LCH	lch(30.93, 25.99, 264.66°)
OKLab	oklab(40.3% -0.0333 -0.0733)
OKLCH	oklch(40.3% 0.08 245.6)
XYZ	xyz(6.0706, 6.6217, 16.5778)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C71 #71421D

analogous

#1D716C #1D4C71 #1D2271

triadic

#1D4C71 #711D4C #4C711D

tetradic

#1D4C71 #6C1D71 #71421D #22711D

square

#1D4C71 #6C1D71 #71421D #22711D

split-complementary

#1D4C71 #711D22 #716C1D

monochromatic

#061018 #112B40 #1D4C71 #296DA2 #3C8DCD

Accessibility & contrast

On white

9.03

#1D4C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1D4C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C71

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C71	#FFFFFF	#000000	##FFFFFF
##1D4C71	1.00	9.03	2.32	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4D73

Deuteranopia (green-blind)

#304570

Tritanopia (blue-blind)

#005559

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4c71;
/* rgb */ color: rgb(29, 76, 113);
/* oklch */ color: oklch(40.3% 0.080 245.6);

Tailwind

colors: {
  custom: {
    50: '#657d9a',
    500: '#1d4c71',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c71;
$custom-light: #657d9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c71",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 113
  },
  "hsl": {
    "h": 206.429,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40302,
    "c": 0.08048,
    "h": 245.6
  },
  "luminance": 0.06622
}

Semantic roles & 50–950 ramp

primary

#1D4C71

secondary

#A56F44

accent

#8B45E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4C71

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

Preview Lab → · Contrast checker → · Palette generator →