#4259BF#4259BF

#4259BF is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.3% C 0.162 H 270.1°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4259BF
RGB	rgb(66, 89, 191)
HSL	hsl(229, 49%, 50%)
HSV	hsv(229, 65%, 75%)
CMYK	cmyk(65.4%, 53.4%, 0%, 25.1%)
CIE-LAB	lab(41.32, 24.46, -56.30)
CIE-LCH	lch(41.32, 61.39, 293.48°)
OKLab	oklab(50.33% 0.0002 -0.1617)
OKLCH	oklch(50.33% 0.162 270.1)
XYZ	xyz(15.2199, 12.0632, 50.8065)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259BF #BFA842

analogous

#4297BF #4259BF #6942BF

triadic

#4259BF #BF4259 #59BF42

tetradic

#4259BF #BF4297 #BFA842 #42BF69

square

#4259BF #BF4297 #BFA842 #42BF69

split-complementary

#4259BF #BF6942 #97BF42

monochromatic

#222E65 #324392 #4259BF #7081CE #9DA9DE

Accessibility & contrast

On white

6.15

#4259BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4259BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259BF

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259BF	#FFFFFF	#000000	##FFFFFF
##4259BF	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1367C3

Deuteranopia (green-blind)

#005CBD

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4259bf;
/* rgb */ color: rgb(66, 89, 191);
/* oklch */ color: oklch(50.3% 0.162 270.1);

Tailwind

colors: {
  custom: {
    50: '#8487d3',
    500: '#4259bf',
    950: '#000000',
  },
}

SCSS

$custom: #4259bf;
$custom-light: #8487d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4259bf",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 191
  },
  "hsl": {
    "h": 228.96,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.50332,
    "c": 0.16171,
    "h": 270.1
  },
  "luminance": 0.12065
}

Semantic roles & 50–950 ramp

primary

#4259BF

secondary

#CAC093

accent

#C04FD9

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4259BF

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

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