#4258B9#4258B9

#4258B9 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.7% C 0.155 H 270.3°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#4258B9
RGB	rgb(66, 88, 185)
HSL	hsl(229, 47%, 49%)
HSV	hsv(229, 64%, 73%)
CMYK	cmyk(64.3%, 52.4%, 0%, 27.5%)
CIE-LAB	lab(40.64, 22.98, -53.90)
CIE-LCH	lch(40.64, 58.59, 293.09°)
OKLab	oklab(49.69% 0.0007 -0.1546)
OKLCH	oklch(49.69% 0.155 270.3)
XYZ	xyz(14.4905, 11.6392, 47.3725)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258B9 #B9A342

analogous

#4293B9 #4258B9 #6842B9

triadic

#4258B9 #B94258 #58B942

tetradic

#4258B9 #B94293 #B9A342 #42B968

square

#4258B9 #B94293 #B9A342 #42B968

split-complementary

#4258B9 #B96842 #93B942

monochromatic

#222D5F #32438C #4258B9 #6D7FCB #9AA6DB

Accessibility & contrast

On white

6.31

#4258B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#4258B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258B9

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258B9	#FFFFFF	#000000	##FFFFFF
##4258B9	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C65BC

Deuteranopia (green-blind)

#005BB7

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4258b9;
/* rgb */ color: rgb(66, 88, 185);
/* oklch */ color: oklch(49.7% 0.155 270.3);

Tailwind

colors: {
  custom: {
    50: '#8386cf',
    500: '#4258b9',
    950: '#000000',
  },
}

SCSS

$custom: #4258b9;
$custom-light: #8386cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4258b9",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 185
  },
  "hsl": {
    "h": 228.908,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49688,
    "c": 0.15465,
    "h": 270.3
  },
  "luminance": 0.1164
}

Semantic roles & 50–950 ramp

primary

#4258B9

secondary

#C7BD90

accent

#BE51D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4258B9

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

Preview Lab → · Contrast checker → · Palette generator →