#1D5166#1D5166

#1D5166 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.0% C 0.065 H 228.3°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D5166
RGB	rgb(29, 81, 102)
HSL	hsl(197, 56%, 26%)
HSV	hsv(197, 72%, 40%)
CMYK	cmyk(71.6%, 20.6%, 0%, 60%)
CIE-LAB	lab(32.04, -9.71, -17.22)
CIE-LCH	lch(32.04, 19.77, 240.57°)
OKLab	oklab(41.01% -0.043 -0.0482)
OKLCH	oklch(41.01% 0.065 228.3)
XYZ	xyz(5.8464, 7.1047, 13.6310)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5166 #66321D

analogous

#1D6656 #1D5166 #1D2C66

triadic

#1D5166 #661D51 #51661D

tetradic

#1D5166 #561D66 #66321D #2C661D

square

#1D5166 #561D66 #66321D #2C661D

split-complementary

#1D5166 #661D2C #66561D

monochromatic

#071318 #0F2B36 #1D5166 #2B7796 #389DC5

Accessibility & contrast

On white

8.67

#1D5166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1D5166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5166

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5166	#FFFFFF	#000000	##FFFFFF
##1D5166	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465067

Deuteranopia (green-blind)

#3C4866

Tritanopia (blue-blind)

#005758

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d5166;
/* rgb */ color: rgb(29, 81, 102);
/* oklch */ color: oklch(41.0% 0.065 228.3);

Tailwind

colors: {
  custom: {
    50: '#638191',
    500: '#1d5166',
    950: '#000000',
  },
}

SCSS

$custom: #1d5166;
$custom-light: #638191;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5166",
  "rgb": {
    "r": 29,
    "g": 81,
    "b": 102
  },
  "hsl": {
    "h": 197.26,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.4101,
    "c": 0.06458,
    "h": 228.3
  },
  "luminance": 0.07105
}

Semantic roles & 50–950 ramp

primary

#1D5166

secondary

#9B5D44

accent

#7449DF

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1D5166

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

Preview Lab → · Contrast checker → · Palette generator →