#1D5178#1D5178

#1D5178 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.0% C 0.085 H 244.7°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1D5178
RGB	rgb(29, 81, 120)
HSL	hsl(206, 61%, 29%)
HSV	hsv(206, 76%, 47%)
CMYK	cmyk(75.8%, 32.5%, 0%, 52.9%)
CIE-LAB	lab(32.92, -2.92, -27.13)
CIE-LCH	lch(32.92, 27.28, 263.86°)
OKLab	oklab(42% -0.0363 -0.0768)
OKLCH	oklch(42% 0.085 244.7)
XYZ	xyz(6.8380, 7.5014, 18.8532)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5178 #78441D

analogous

#1D7872 #1D5178 #1D2478

triadic

#1D5178 #781D51 #51781D

tetradic

#1D5178 #721D78 #78441D #24781D

square

#1D5178 #721D78 #78441D #24781D

split-complementary

#1D5178 #781D24 #78721D

monochromatic

#061119 #113047 #1D5178 #2972A9 #3F92D1

Accessibility & contrast

On white

8.40

#1D5178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1D5178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5178

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5178	#FFFFFF	#000000	##FFFFFF
##1D5178	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F527A

Deuteranopia (green-blind)

#334A77

Tritanopia (blue-blind)

#005A5F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d5178;
/* rgb */ color: rgb(29, 81, 120);
/* oklch */ color: oklch(42.0% 0.085 244.7);

Tailwind

colors: {
  custom: {
    50: '#66819f',
    500: '#1d5178',
    950: '#000000',
  },
}

SCSS

$custom: #1d5178;
$custom-light: #66819f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5178",
  "rgb": {
    "r": 29,
    "g": 81,
    "b": 120
  },
  "hsl": {
    "h": 205.714,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.41996,
    "c": 0.08497,
    "h": 244.7
  },
  "luminance": 0.07502
}

Semantic roles & 50–950 ramp

primary

#1D5178

secondary

#AC7145

accent

#8844E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1D5178

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

Preview Lab → · Contrast checker → · Palette generator →