#1C64A9#1C64A9

#1C64A9 is a mid, vivid cyan. Relative luminance 0.122; OKLCH L 49.7% C 0.130 H 251.6°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#1C64A9
RGB	rgb(28, 100, 169)
HSL	hsl(209, 72%, 39%)
HSV	hsv(209, 83%, 66%)
CMYK	cmyk(83.4%, 40.8%, 0%, 33.7%)
CIE-LAB	lab(41.57, 4.03, -43.07)
CIE-LCH	lch(41.57, 43.26, 275.35°)
OKLab	oklab(49.68% -0.0409 -0.1232)
OKLCH	oklch(49.68% 0.13 251.6)
XYZ	xyz(12.1948, 12.2243, 39.2452)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C64A9 #A9611C

analogous

#1CA9A7 #1C64A9 #1C1DA9

triadic

#1C64A9 #A91C64 #64A91C

tetradic

#1C64A9 #A71CA9 #A9611C #1DA91C

square

#1C64A9 #A71CA9 #A9611C #1DA91C

split-complementary

#1C64A9 #A91C1D #A9A71C

monochromatic

#0B2640 #134574 #1C64A9 #2783DB #5BA1E4

Accessibility & contrast

On white

6.10

#1C64A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#1C64A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C64A9

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C64A9	#FFFFFF	#000000	##FFFFFF
##1C64A9	1.00	6.10	3.45	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4269AC

Deuteranopia (green-blind)

#2A5CA8

Tritanopia (blue-blind)

#00757E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #1c64a9;
/* rgb */ color: rgb(28, 100, 169);
/* oklch */ color: oklch(49.7% 0.130 251.6);

Tailwind

colors: {
  custom: {
    50: '#718fc3',
    500: '#1c64a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c64a9;
$custom-light: #718fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c64a9",
  "rgb": {
    "r": 28,
    "g": 100,
    "b": 169
  },
  "hsl": {
    "h": 209.362,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49675,
    "c": 0.12982,
    "h": 251.6
  },
  "luminance": 0.12226
}

Semantic roles & 50–950 ramp

primary

#1C64A9

secondary

#C88F59

accent

#9239EE

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1C64A9

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

Preview Lab → · Contrast checker → · Palette generator →