#4253D1#4253D1

#4253D1 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.6% C 0.193 H 271.7°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#4253D1
RGB	rgb(66, 83, 209)
HSL	hsl(233, 61%, 54%)
HSV	hsv(233, 68%, 82%)
CMYK	cmyk(68.4%, 60.3%, 0%, 18%)
CIE-LAB	lab(41.13, 34.60, -67.03)
CIE-LCH	lch(41.13, 75.43, 297.30°)
OKLab	oklab(50.62% 0.0057 -0.1933)
OKLCH	oklch(50.62% 0.193 271.7)
XYZ	xyz(16.8448, 11.9466, 61.7274)
Luminance	0.1195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253D1 #D1C042

analogous

#429BD1 #4253D1 #7942D1

triadic

#4253D1 #D14253 #53D142

tetradic

#4253D1 #D1429B #D1C042 #42D179

square

#4253D1 #D1429B #D1C042 #42D179

split-complementary

#4253D1 #D17942 #9BD142

monochromatic

#1E297B #2A39AC #4253D1 #7380DD #A4ADE9

Accessibility & contrast

On white

6.20

#4253D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#4253D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253D1

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253D1	#FFFFFF	#000000	##FFFFFF
##4253D1	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D5

Deuteranopia (green-blind)

#005BCF

Tritanopia (blue-blind)

#00738A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4253d1;
/* rgb */ color: rgb(66, 83, 209);
/* oklch */ color: oklch(50.6% 0.193 271.7);

Tailwind

colors: {
  custom: {
    50: '#8883e0',
    500: '#4253d1',
    950: '#000000',
  },
}

SCSS

$custom: #4253d1;
$custom-light: #8883e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4253d1",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 209
  },
  "hsl": {
    "h": 232.867,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50615,
    "c": 0.19338,
    "h": 271.7
  },
  "luminance": 0.11948
}

Semantic roles & 50–950 ramp

primary

#4253D1

secondary

#D6CF99

accent

#D144E4

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4253D1

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

Preview Lab → · Contrast checker → · Palette generator →