#4259BE#4259BE

#4259BE is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.3% C 0.160 H 270.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4259BE
RGB	rgb(66, 89, 190)
HSL	hsl(229, 49%, 50%)
HSV	hsv(229, 65%, 75%)
CMYK	cmyk(65.3%, 53.2%, 0%, 25.5%)
CIE-LAB	lab(41.25, 24.11, -55.83)
CIE-LCH	lch(41.25, 60.82, 293.35°)
OKLab	oklab(50.26% 0.0001 -0.1603)
OKLCH	oklch(50.26% 0.16 270.1)
XYZ	xyz(15.1103, 12.0193, 50.2289)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259BE #BEA742

analogous

#4297BE #4259BE #6942BE

triadic

#4259BE #BE4259 #59BE42

tetradic

#4259BE #BE4297 #BEA742 #42BE69

square

#4259BE #BE4297 #BEA742 #42BE69

split-complementary

#4259BE #BE6942 #97BE42

monochromatic

#222E63 #324391 #4259BE #7081CE #9DA9DD

Accessibility & contrast

On white

6.17

#4259BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4259BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259BE

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259BE	#FFFFFF	#000000	##FFFFFF
##4259BE	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1667C2

Deuteranopia (green-blind)

#005CBC

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4259be;
/* rgb */ color: rgb(66, 89, 190);
/* oklch */ color: oklch(50.3% 0.160 270.1);

Tailwind

colors: {
  custom: {
    50: '#8487d2',
    500: '#4259be',
    950: '#000000',
  },
}

SCSS

$custom: #4259be;
$custom-light: #8487d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4259be",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 190
  },
  "hsl": {
    "h": 228.871,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50258,
    "c": 0.16033,
    "h": 270.1
  },
  "luminance": 0.12021
}

Semantic roles & 50–950 ramp

primary

#4259BE

secondary

#CABF92

accent

#BF4FD8

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4259BE

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

Preview Lab → · Contrast checker → · Palette generator →