#1C64B1#1C64B1

#1C64B1 is a mid, vivid cyan. Relative luminance 0.125; OKLCH L 50.2% C 0.140 H 253.8°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C64B1
RGB	rgb(28, 100, 177)
HSL	hsl(211, 73%, 40%)
HSV	hsv(211, 84%, 69%)
CMYK	cmyk(84.2%, 43.5%, 0%, 30.6%)
CIE-LAB	lab(42.05, 7.18, -47.01)
CIE-LCH	lch(42.05, 47.56, 278.69°)
OKLab	oklab(50.21% -0.0391 -0.1348)
OKLCH	oklch(50.21% 0.14 253.8)
XYZ	xyz(12.9689, 12.5339, 43.3222)
Luminance	0.1254 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C64B1 #B1691C

analogous

#1CAEB1 #1C64B1 #1F1CB1

triadic

#1C64B1 #B11C64 #64B11C

tetradic

#1C64B1 #B11CAE #B1691C #1CB11F

square

#1C64B1 #B11CAE #B1691C #1CB11F

split-complementary

#1C64B1 #B11F1C #AEB11C

monochromatic

#0B2847 #14467C #1C64B1 #2C82DE #61A1E6

Accessibility & contrast

On white

5.99

#1C64B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#1C64B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C64B1

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C64B1	#FFFFFF	#000000	##FFFFFF
##1C64B1	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6AB4

Deuteranopia (green-blind)

#1F5DAF

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #1c64b1;
/* rgb */ color: rgb(28, 100, 177);
/* oklch */ color: oklch(50.2% 0.140 253.8);

Tailwind

colors: {
  custom: {
    50: '#738fc9',
    500: '#1c64b1',
    950: '#000000',
  },
}

SCSS

$custom: #1c64b1;
$custom-light: #738fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c64b1",
  "rgb": {
    "r": 28,
    "g": 100,
    "b": 177
  },
  "hsl": {
    "h": 211.007,
    "s": 72.683,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50206,
    "c": 0.14032,
    "h": 253.8
  },
  "luminance": 0.12536
}

Semantic roles & 50–950 ramp

primary

#1C64B1

secondary

#CB965E

accent

#9738EF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090C13

muted

#7B7D82

Preview Lab

Preview with #1C64B1

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

Preview Lab → · Contrast checker → · Palette generator →