#4087FF#4087FF

#4087FF is a light, vivid blue. Relative luminance 0.256; OKLCH L 64.1% C 0.193 H 260.2°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#4087FF
RGB	rgb(64, 135, 255)
HSL	hsl(218, 100%, 63%)
HSV	hsv(218, 75%, 100%)
CMYK	cmyk(74.9%, 47.1%, 0%, 0%)
CIE-LAB	lab(57.69, 18.29, -66.06)
CIE-LCH	lch(57.69, 68.55, 285.48°)
OKLab	oklab(64.11% -0.0326 -0.1897)
OKLCH	oklch(64.11% 0.193 260.2)
XYZ	xyz(28.8218, 25.6347, 98.0173)
Luminance	0.2564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4087FF #FFB840

analogous

#40E7FF #4087FF #5840FF

triadic

#4087FF #FF4087 #87FF40

tetradic

#4087FF #FF40E7 #FFB840 #40FF58

square

#4087FF #FF40E7 #FFB840 #40FF58

split-complementary

#4087FF #FF5840 #E7FF40

monochromatic

#0049C5 #0361FF #4087FF #7DADFF #BAD4FF

Accessibility & contrast

On white

3.43

#4087FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#4087FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4087FF

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4087FF	#FFFFFF	#000000	##000000
##4087FF	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4494FF

Deuteranopia (green-blind)

#0082FD

Tritanopia (blue-blind)

#00A4B7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4087ff;
/* rgb */ color: rgb(64, 135, 255);
/* oklch */ color: oklch(64.1% 0.193 260.2);

Tailwind

colors: {
  custom: {
    50: '#8da9ff',
    500: '#4087ff',
    950: '#000000',
  },
}

SCSS

$custom: #4087ff;
$custom-light: #8da9ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4087ff",
  "rgb": {
    "r": 64,
    "g": 135,
    "b": 255
  },
  "hsl": {
    "h": 217.696,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64112,
    "c": 0.1925,
    "h": 260.2
  },
  "luminance": 0.25638
}

Semantic roles & 50–950 ramp

primary

#4087FF

secondary

#F0D6AB

accent

#9000E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F18

muted

#7E7F86

Preview Lab

Preview with #4087FF

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

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