#1D4E71#1D4E71

#1D4E71 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.8% C 0.079 H 243.2°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E71
RGB	rgb(29, 78, 113)
HSL	hsl(205, 59%, 28%)
HSV	hsv(205, 74%, 44%)
CMYK	cmyk(74.3%, 31%, 0%, 55.7%)
CIE-LAB	lab(31.58, -3.71, -24.86)
CIE-LCH	lch(31.58, 25.13, 261.52°)
OKLab	oklab(40.82% -0.0354 -0.0703)
OKLCH	oklch(40.82% 0.079 243.2)
XYZ	xyz(6.2106, 6.9016, 16.6244)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E71 #71401D

analogous

#1D716A #1D4E71 #1D2471

triadic

#1D4E71 #711D4E #4E711D

tetradic

#1D4E71 #6A1D71 #71401D #24711D

square

#1D4E71 #6A1D71 #71401D #24711D

split-complementary

#1D4E71 #711D24 #716A1D

monochromatic

#061118 #112C40 #1D4E71 #2970A2 #3C90CD

Accessibility & contrast

On white

8.82

#1D4E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1D4E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E71

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E71	#FFFFFF	#000000	##FFFFFF
##1D4E71	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4F73

Deuteranopia (green-blind)

#324770

Tritanopia (blue-blind)

#00575A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d4e71;
/* rgb */ color: rgb(29, 78, 113);
/* oklch */ color: oklch(40.8% 0.079 243.2);

Tailwind

colors: {
  custom: {
    50: '#657f9a',
    500: '#1d4e71',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e71;
$custom-light: #657f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e71",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 113
  },
  "hsl": {
    "h": 205,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40817,
    "c": 0.0787,
    "h": 243.2
  },
  "luminance": 0.06902
}

Semantic roles & 50–950 ramp

primary

#1D4E71

secondary

#A56D44

accent

#8745E2

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1D4E71

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

Preview Lab → · Contrast checker → · Palette generator →