#4258C3#4258C3

#4258C3 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.4% C 0.168 H 270.5°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4258C3
RGB	rgb(66, 88, 195)
HSL	hsl(230, 52%, 51%)
HSV	hsv(230, 66%, 76%)
CMYK	cmyk(66.2%, 54.9%, 0%, 23.5%)
CIE-LAB	lab(41.34, 26.52, -58.60)
CIE-LCH	lch(41.34, 64.32, 294.35°)
OKLab	oklab(50.44% 0.0014 -0.1685)
OKLCH	oklch(50.44% 0.168 270.5)
XYZ	xyz(15.5835, 12.0764, 53.1289)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258C3 #C3AD42

analogous

#4298C3 #4258C3 #6C42C3

triadic

#4258C3 #C34258 #58C342

tetradic

#4258C3 #C34298 #C3AD42 #42C36C

square

#4258C3 #C34298 #C3AD42 #42C36C

split-complementary

#4258C3 #C36C42 #98C342

monochromatic

#212E69 #304298 #4258C3 #7081D2 #9FAAE0

Accessibility & contrast

On white

6.15

#4258C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#4258C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258C3

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258C3	#FFFFFF	#000000	##FFFFFF
##4258C3	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068C7

Deuteranopia (green-blind)

#005CC1

Tritanopia (blue-blind)

#007285

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4258c3;
/* rgb */ color: rgb(66, 88, 195);
/* oklch */ color: oklch(50.4% 0.168 270.5);

Tailwind

colors: {
  custom: {
    50: '#8586d6',
    500: '#4258c3',
    950: '#000000',
  },
}

SCSS

$custom: #4258c3;
$custom-light: #8586d6;
$custom-dark: #000000;

JSON

{
  "hex": "#4258c3",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 195
  },
  "hsl": {
    "h": 229.767,
    "s": 51.807,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50438,
    "c": 0.16848,
    "h": 270.5
  },
  "luminance": 0.12078
}

Semantic roles & 50–950 ramp

primary

#4258C3

secondary

#CDC394

accent

#C34DDB

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4258C3

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

Preview Lab → · Contrast checker → · Palette generator →