#4259BC#4259BC

#4259BC is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.1% C 0.158 H 270.0°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#4259BC
RGB	rgb(66, 89, 188)
HSL	hsl(229, 48%, 50%)
HSV	hsv(229, 65%, 74%)
CMYK	cmyk(64.9%, 52.7%, 0%, 26.3%)
CIE-LAB	lab(41.11, 23.40, -54.89)
CIE-LCH	lch(41.11, 59.67, 293.09°)
OKLab	oklab(50.11% 0 -0.1575)
OKLCH	oklch(50.11% 0.158 270)
XYZ	xyz(14.8932, 11.9325, 49.0856)
Luminance	0.1193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259BC #BCA542

analogous

#4296BC #4259BC #6842BC

triadic

#4259BC #BC4259 #59BC42

tetradic

#4259BC #BC4296 #BCA542 #42BC68

square

#4259BC #BC4296 #BCA542 #42BC68

split-complementary

#4259BC #BC6842 #96BC42

monochromatic

#222E61 #32448F #4259BC #6F80CC #9CA8DC

Accessibility & contrast

On white

6.20

#4259BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#4259BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259BC

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259BC	#FFFFFF	#000000	##FFFFFF
##4259BC	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A67BF

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4259bc;
/* rgb */ color: rgb(66, 89, 188);
/* oklch */ color: oklch(50.1% 0.158 270.0);

Tailwind

colors: {
  custom: {
    50: '#8387d1',
    500: '#4259bc',
    950: '#000000',
  },
}

SCSS

$custom: #4259bc;
$custom-light: #8387d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4259bc",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 188
  },
  "hsl": {
    "h": 228.689,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.50109,
    "c": 0.15755,
    "h": 270
  },
  "luminance": 0.11934
}

Semantic roles & 50–950 ramp

primary

#4259BC

secondary

#C9BE91

accent

#BE50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4259BC

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

Preview Lab → · Contrast checker → · Palette generator →