#1D5B9C#1D5B9C

#1D5B9C is a mid, vivid cyan. Relative luminance 0.101; OKLCH L 46.7% C 0.122 H 253.0°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B9C
RGB	rgb(29, 91, 156)
HSL	hsl(211, 69%, 36%)
HSV	hsv(211, 81%, 61%)
CMYK	cmyk(81.4%, 41.7%, 0%, 38.8%)
CIE-LAB	lab(38.10, 4.79, -40.89)
CIE-LCH	lch(38.10, 41.17, 276.68°)
OKLab	oklab(46.72% -0.0358 -0.1169)
OKLCH	oklch(46.72% 0.122 253)
XYZ	xyz(10.2463, 10.1424, 32.8637)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B9C #9C5E1D

analogous

#1D9B9C #1D5B9C #1F1D9C

triadic

#1D5B9C #9C1D5B #5B9C1D

tetradic

#1D5B9C #9C1D9B #9C5E1D #1D9C1F

square

#1D5B9C #9C1D9B #9C5E1D #1D9C1F

split-complementary

#1D5B9C #9C1F1D #9B9C1D

monochromatic

#0A1F35 #133D68 #1D5B9C #2779D0 #5498DF

Accessibility & contrast

On white

6.93

#1D5B9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#1D5B9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5B9C

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B9C	#FFFFFF	#000000	##FFFFFF
##1D5B9C	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B609F

Deuteranopia (green-blind)

#25549B

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1d5b9c;
/* rgb */ color: rgb(29, 91, 156);
/* oklch */ color: oklch(46.7% 0.122 253.0);

Tailwind

colors: {
  custom: {
    50: '#6e88b9',
    500: '#1d5b9c',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b9c;
$custom-light: #6e88b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b9c",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 156
  },
  "hsl": {
    "h": 210.709,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.4672,
    "c": 0.12231,
    "h": 253
  },
  "luminance": 0.10144
}

Semantic roles & 50–950 ramp

primary

#1D5B9C

secondary

#C28C52

accent

#963CEB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1D5B9C

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

Preview Lab → · Contrast checker → · Palette generator →