#4263B3#4263B3

#4263B3 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.6% C 0.132 H 265.2°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#4263B3
RGB	rgb(66, 99, 179)
HSL	hsl(222, 46%, 48%)
HSV	hsv(222, 63%, 70%)
CMYK	cmyk(63.1%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(43.26, 13.80, -46.16)
CIE-LCH	lch(43.26, 48.18, 286.65°)
OKLab	oklab(51.57% -0.011 -0.1317)
OKLCH	oklch(51.57% 0.132 265.2)
XYZ	xyz(14.8425, 13.3353, 44.4309)
Luminance	0.1334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263B3 #B39242

analogous

#429BB3 #4263B3 #5A42B3

triadic

#4263B3 #B34263 #63B342

tetradic

#4263B3 #B3429B #B39242 #42B35A

square

#4263B3 #B3429B #B39242 #42B35A

split-complementary

#4263B3 #B35A42 #9BB342

monochromatic

#21325A #324A86 #4263B3 #6A86C8 #97AAD9

Accessibility & contrast

On white

5.73

#4263B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#4263B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263B3

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263B3	#FFFFFF	#000000	##FFFFFF
##4263B3	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6CB6

Deuteranopia (green-blind)

#2B61B1

Tritanopia (blue-blind)

#007582

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4263b3;
/* rgb */ color: rgb(66, 99, 179);
/* oklch */ color: oklch(51.6% 0.132 265.2);

Tailwind

colors: {
  custom: {
    50: '#818fca',
    500: '#4263b3',
    950: '#000000',
  },
}

SCSS

$custom: #4263b3;
$custom-light: #818fca;
$custom-dark: #000000;

JSON

{
  "hex": "#4263b3",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 222.478,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.51565,
    "c": 0.13221,
    "h": 265.2
  },
  "luminance": 0.13337
}

Semantic roles & 50–950 ramp

primary

#4263B3

secondary

#C4B48C

accent

#AF52D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4263B3

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

Preview Lab → · Contrast checker → · Palette generator →