#1D5A9A#1D5A9A

#1D5A9A is a mid, vivid cyan. Relative luminance 0.099; OKLCH L 46.4% C 0.121 H 253.0°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D5A9A
RGB	rgb(29, 90, 154)
HSL	hsl(211, 68%, 36%)
HSV	hsv(211, 81%, 60%)
CMYK	cmyk(81.2%, 41.6%, 0%, 39.6%)
CIE-LAB	lab(37.67, 4.65, -40.37)
CIE-LCH	lch(37.67, 40.63, 276.56°)
OKLab	oklab(46.35% -0.0354 -0.1154)
OKLCH	oklch(46.35% 0.121 253)
XYZ	xyz(9.9934, 9.9054, 31.9508)
Luminance	0.0991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5A9A #9A5D1D

analogous

#1D989A #1D5A9A #1E1D9A

triadic

#1D5A9A #9A1D5A #5A9A1D

tetradic

#1D5A9A #9A1D98 #9A5D1D #1D9A1E

square

#1D5A9A #9A1D98 #9A5D1D #1D9A1E

split-complementary

#1D5A9A #9A1E1D #989A1D

monochromatic

#0A1E33 #133C66 #1D5A9A #2778CE #5397DF

Accessibility & contrast

On white

7.04

#1D5A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#1D5A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5A9A

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5A9A	#FFFFFF	#000000	##FFFFFF
##1D5A9A	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5F9D

Deuteranopia (green-blind)

#255399

Tritanopia (blue-blind)

#006972

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1d5a9a;
/* rgb */ color: rgb(29, 90, 154);
/* oklch */ color: oklch(46.4% 0.121 253.0);

Tailwind

colors: {
  custom: {
    50: '#6e88b8',
    500: '#1d5a9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d5a9a;
$custom-light: #6e88b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5a9a",
  "rgb": {
    "r": 29,
    "g": 90,
    "b": 154
  },
  "hsl": {
    "h": 210.72,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.4635,
    "c": 0.12075,
    "h": 253
  },
  "luminance": 0.09907
}

Semantic roles & 50–950 ramp

primary

#1D5A9A

secondary

#C28B51

accent

#963DEB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1D5A9A

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

Preview Lab → · Contrast checker → · Palette generator →