#1D5B82#1D5B82

#1D5B82 is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.1% C 0.089 H 240.8°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B82
RGB	rgb(29, 91, 130)
HSL	hsl(203, 64%, 31%)
HSV	hsv(203, 78%, 51%)
CMYK	cmyk(77.7%, 30%, 0%, 49%)
CIE-LAB	lab(36.66, -5.36, -27.43)
CIE-LCH	lch(36.66, 27.94, 258.94°)
OKLab	oklab(45.12% -0.0433 -0.0776)
OKLCH	oklch(45.12% 0.089 240.8)
XYZ	xyz(8.2755, 9.3541, 22.4841)
Luminance	0.0935 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B82 #82441D

analogous

#1D8276 #1D5B82 #1D2882

triadic

#1D5B82 #821D5B #5B821D

tetradic

#1D5B82 #761D82 #82441D #28821D

square

#1D5B82 #761D82 #82441D #28821D

split-complementary

#1D5B82 #821D28 #82761D

monochromatic

#07151E #123850 #1D5B82 #287EB4 #449DD5

Accessibility & contrast

On white

7.31

#1D5B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1D5B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5B82

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B82	#FFFFFF	#000000	##FFFFFF
##1D5B82	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495B84

Deuteranopia (green-blind)

#3B5281

Tritanopia (blue-blind)

#006569

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d5b82;
/* rgb */ color: rgb(29, 91, 130);
/* oklch */ color: oklch(45.1% 0.089 240.8);

Tailwind

colors: {
  custom: {
    50: '#6989a6',
    500: '#1d5b82',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b82;
$custom-light: #6989a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b82",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 130
  },
  "hsl": {
    "h": 203.168,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.45119,
    "c": 0.08885,
    "h": 240.8
  },
  "luminance": 0.09355
}

Semantic roles & 50–950 ramp

primary

#1D5B82

secondary

#B57146

accent

#8141E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1D5B82

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

Preview Lab → · Contrast checker → · Palette generator →