#4059BF#4059BF

#4059BF is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.2% C 0.162 H 269.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4059BF
RGB	rgb(64, 89, 191)
HSL	hsl(228, 50%, 50%)
HSV	hsv(228, 66%, 75%)
CMYK	cmyk(66.5%, 53.4%, 0%, 25.1%)
CIE-LAB	lab(41.21, 24.14, -56.48)
CIE-LCH	lch(41.21, 61.43, 293.14°)
OKLab	oklab(50.22% -0.0018 -0.1623)
OKLCH	oklch(50.22% 0.162 269.4)
XYZ	xyz(15.0875, 11.9949, 50.8003)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4059BF #BFA640

analogous

#4098BF #4059BF #6740BF

triadic

#4059BF #BF4059 #59BF40

tetradic

#4059BF #BF4098 #BFA640 #40BF67

square

#4059BF #BF4098 #BFA640 #40BF67

split-complementary

#4059BF #BF6740 #98BF40

monochromatic

#212E63 #314491 #4059BF #6E81CE #9CA9DE

Accessibility & contrast

On white

6.18

#4059BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4059BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4059BF

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4059BF	#FFFFFF	#000000	##FFFFFF
##4059BF	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1267C3

Deuteranopia (green-blind)

#005CBD

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4059bf;
/* rgb */ color: rgb(64, 89, 191);
/* oklch */ color: oklch(50.2% 0.162 269.4);

Tailwind

colors: {
  custom: {
    50: '#8387d3',
    500: '#4059bf',
    950: '#000000',
  },
}

SCSS

$custom: #4059bf;
$custom-light: #8387d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4059bf",
  "rgb": {
    "r": 64,
    "g": 89,
    "b": 191
  },
  "hsl": {
    "h": 228.189,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.50221,
    "c": 0.1623,
    "h": 269.4
  },
  "luminance": 0.11996
}

Semantic roles & 50–950 ramp

primary

#4059BF

secondary

#CABF91

accent

#BE4ED9

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4059BF

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

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