#4258BA#4258BA

#4258BA is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.8% C 0.156 H 270.3°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4258BA
RGB	rgb(66, 88, 186)
HSL	hsl(229, 48%, 49%)
HSV	hsv(229, 65%, 73%)
CMYK	cmyk(64.5%, 52.7%, 0%, 27.1%)
CIE-LAB	lab(40.71, 23.34, -54.37)
CIE-LCH	lch(40.71, 59.17, 293.23°)
OKLab	oklab(49.76% 0.0008 -0.156)
OKLCH	oklch(49.76% 0.156 270.3)
XYZ	xyz(14.5964, 11.6816, 47.9304)
Luminance	0.1168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258BA #BAA442

analogous

#4294BA #4258BA #6842BA

triadic

#4258BA #BA4258 #58BA42

tetradic

#4258BA #BA4294 #BAA442 #42BA68

square

#4258BA #BA4294 #BAA442 #42BA68

split-complementary

#4258BA #BA6842 #94BA42

monochromatic

#222D60 #32438D #4258BA #6E7FCB #9BA7DB

Accessibility & contrast

On white

6.29

#4258BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4258BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258BA

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258BA	#FFFFFF	#000000	##FFFFFF
##4258BA	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A66BD

Deuteranopia (green-blind)

#005BB8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4258ba;
/* rgb */ color: rgb(66, 88, 186);
/* oklch */ color: oklch(49.8% 0.156 270.3);

Tailwind

colors: {
  custom: {
    50: '#8386cf',
    500: '#4258ba',
    950: '#000000',
  },
}

SCSS

$custom: #4258ba;
$custom-light: #8386cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4258ba",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 186
  },
  "hsl": {
    "h": 229,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49761,
    "c": 0.15604,
    "h": 270.3
  },
  "luminance": 0.11683
}

Semantic roles & 50–950 ramp

primary

#4258BA

secondary

#C8BD90

accent

#BF51D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4258BA

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

Preview Lab → · Contrast checker → · Palette generator →