#4258C8#4258C8

#4258C8 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.175 H 270.5°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4258C8
RGB	rgb(66, 88, 200)
HSL	hsl(230, 55%, 52%)
HSV	hsv(230, 67%, 78%)
CMYK	cmyk(67%, 56%, 0%, 21.6%)
CIE-LAB	lab(41.70, 28.28, -60.91)
CIE-LCH	lch(41.70, 67.15, 294.91°)
OKLab	oklab(50.82% 0.0016 -0.1753)
OKLCH	oklch(50.82% 0.175 270.5)
XYZ	xyz(16.1583, 12.3063, 56.1562)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258C8 #C8B242

analogous

#429BC8 #4258C8 #6F42C8

triadic

#4258C8 #C84258 #58C842

tetradic

#4258C8 #C8429B #C8B242 #42C86F

square

#4258C8 #C8429B #C8B242 #42C86F

split-complementary

#4258C8 #C86F42 #9BC842

monochromatic

#202D6F #2E419F #4258C8 #7182D6 #A1ACE4

Accessibility & contrast

On white

6.07

#4258C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4258C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258C8

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258C8	#FFFFFF	#000000	##FFFFFF
##4258C8	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CC

Deuteranopia (green-blind)

#005DC6

Tritanopia (blue-blind)

#007387

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4258c8;
/* rgb */ color: rgb(66, 88, 200);
/* oklch */ color: oklch(50.8% 0.175 270.5);

Tailwind

colors: {
  custom: {
    50: '#8686d9',
    500: '#4258c8',
    950: '#000000',
  },
}

SCSS

$custom: #4258c8;
$custom-light: #8686d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4258c8",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 200
  },
  "hsl": {
    "h": 230.149,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.50823,
    "c": 0.17528,
    "h": 270.5
  },
  "luminance": 0.12308
}

Semantic roles & 50–950 ramp

primary

#4258C8

secondary

#D0C796

accent

#C64ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4258C8

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

Preview Lab → · Contrast checker → · Palette generator →