#4263CF#4263CF

#4263CF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.5% C 0.171 H 267.5°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4263CF
RGB	rgb(66, 99, 207)
HSL	hsl(226, 59%, 54%)
HSV	hsv(226, 68%, 81%)
CMYK	cmyk(68.1%, 52.2%, 0%, 18.8%)
CIE-LAB	lab(45.06, 23.76, -59.50)
CIE-LCH	lch(45.06, 64.07, 291.77°)
OKLab	oklab(53.51% -0.0074 -0.171)
OKLCH	oklch(53.51% 0.171 267.5)
XYZ	xyz(17.9672, 14.5852, 60.8877)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263CF #CFAE42

analogous

#42AACF #4263CF #6742CF

triadic

#4263CF #CF4263 #63CF42

tetradic

#4263CF #CF42AA #CFAE42 #42CF67

square

#4263CF #CF42AA #CFAE42 #42CF67

split-complementary

#4263CF #CF6742 #AACF42

monochromatic

#1F3378 #2B48A9 #4263CF #738BDB #A4B4E8

Accessibility & contrast

On white

5.36

#4263CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#4263CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263CF

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263CF	#FFFFFF	#000000	##FFFFFF
##4263CF	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C71D3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4263cf;
/* rgb */ color: rgb(66, 99, 207);
/* oklch */ color: oklch(53.5% 0.171 267.5);

Tailwind

colors: {
  custom: {
    50: '#868ede',
    500: '#4263cf',
    950: '#000000',
  },
}

SCSS

$custom: #4263cf;
$custom-light: #868ede;
$custom-dark: #000000;

JSON

{
  "hex": "#4263cf",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 207
  },
  "hsl": {
    "h": 225.957,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5351,
    "c": 0.17112,
    "h": 267.5
  },
  "luminance": 0.14587
}

Semantic roles & 50–950 ramp

primary

#4263CF

secondary

#D5C698

accent

#BE45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4263CF

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

Preview Lab → · Contrast checker → · Palette generator →