#4258D2#4258D2

#4258D2 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.6% C 0.189 H 270.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#4258D2
RGB	rgb(66, 88, 210)
HSL	hsl(231, 62%, 54%)
HSV	hsv(231, 69%, 82%)
CMYK	cmyk(68.6%, 58.1%, 0%, 17.6%)
CIE-LAB	lab(42.44, 31.80, -65.46)
CIE-LCH	lch(42.44, 72.78, 295.91°)
OKLab	oklab(51.61% 0.0018 -0.1887)
OKLCH	oklch(51.61% 0.189 270.6)
XYZ	xyz(17.3654, 12.7892, 62.5137)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258D2 #D2BC42

analogous

#42A0D2 #4258D2 #7442D2

triadic

#4258D2 #D24258 #58D242

tetradic

#4258D2 #D242A0 #D2BC42 #42D274

square

#4258D2 #D242A0 #D2BC42 #42D274

split-complementary

#4258D2 #D27442 #A0D242

monochromatic

#1E2C7C #293EAD #4258D2 #7384DE #A5AFEA

Accessibility & contrast

On white

5.90

#4258D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4258D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258D2

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258D2	#FFFFFF	#000000	##FFFFFF
##4258D2	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD6

Deuteranopia (green-blind)

#005ED0

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4258d2;
/* rgb */ color: rgb(66, 88, 210);
/* oklch */ color: oklch(51.6% 0.189 270.6);

Tailwind

colors: {
  custom: {
    50: '#8887e1',
    500: '#4258d2',
    950: '#000000',
  },
}

SCSS

$custom: #4258d2;
$custom-light: #8887e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4258d2",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 210
  },
  "hsl": {
    "h": 230.833,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.51614,
    "c": 0.18867,
    "h": 270.6
  },
  "luminance": 0.12791
}

Semantic roles & 50–950 ramp

primary

#4258D2

secondary

#D7CD99

accent

#CC43E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4258D2

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

Preview Lab → · Contrast checker → · Palette generator →