#4258DA#4258DA

#4258DA is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.3% C 0.199 H 270.5°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#4258DA
RGB	rgb(66, 88, 218)
HSL	hsl(231, 67%, 56%)
HSV	hsv(231, 70%, 85%)
CMYK	cmyk(69.7%, 59.6%, 0%, 14.5%)
CIE-LAB	lab(43.06, 34.61, -69.04)
CIE-LCH	lch(43.06, 77.23, 296.62°)
OKLab	oklab(52.26% 0.0019 -0.1992)
OKLCH	oklch(52.26% 0.199 270.5)
XYZ	xyz(18.3871, 13.1978, 67.8945)
Luminance	0.1320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258DA #DAC442

analogous

#42A4DA #4258DA #7842DA

triadic

#4258DA #DA4258 #58DA42

tetradic

#4258DA #DA42A4 #DAC442 #42DA78

square

#4258DA #DA42A4 #DAC442 #42DA78

split-complementary

#4258DA #DA7842 #A4DA42

monochromatic

#1A2A87 #243ABA #4258DA #7585E4 #A8B2EE

Accessibility & contrast

On white

5.77

#4258DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#4258DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258DA

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258DA	#FFFFFF	#000000	##FFFFFF
##4258DA	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DDE

Deuteranopia (green-blind)

#005FD7

Tritanopia (blue-blind)

#007990

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4258da;
/* rgb */ color: rgb(66, 88, 218);
/* oklch */ color: oklch(52.3% 0.199 270.5);

Tailwind

colors: {
  custom: {
    50: '#8987e6',
    500: '#4258da',
    950: '#000000',
  },
}

SCSS

$custom: #4258da;
$custom-light: #8987e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4258da",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 218
  },
  "hsl": {
    "h": 231.316,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52264,
    "c": 0.19917,
    "h": 270.5
  },
  "luminance": 0.132
}

Semantic roles & 50–950 ramp

primary

#4258DA

secondary

#DBD29C

accent

#D13EEA

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4258DA

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

Preview Lab → · Contrast checker → · Palette generator →