#4089FF#4089FF

#4089FF is a light, vivid blue. Relative luminance 0.262; OKLCH L 64.5% C 0.190 H 259.6°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4089FF
RGB	rgb(64, 137, 255)
HSL	hsl(217, 100%, 63%)
HSV	hsv(217, 75%, 100%)
CMYK	cmyk(74.9%, 46.3%, 0%, 0%)
CIE-LAB	lab(58.22, 17.07, -65.20)
CIE-LCH	lch(58.22, 67.40, 284.67°)
OKLab	oklab(64.52% -0.0342 -0.1871)
OKLCH	oklch(64.52% 0.19 259.6)
XYZ	xyz(29.1035, 26.1980, 98.1112)
Luminance	0.2620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4089FF #FFB640

analogous

#40E9FF #4089FF #5640FF

triadic

#4089FF #FF4089 #89FF40

tetradic

#4089FF #FF40E9 #FFB640 #40FF56

square

#4089FF #FF40E9 #FFB640 #40FF56

split-complementary

#4089FF #FF5640 #E9FF40

monochromatic

#004BC5 #0363FF #4089FF #7DAFFF #BAD5FF

Accessibility & contrast

On white

3.37

#4089FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#4089FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4089FF

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4089FF	#FFFFFF	#000000	##000000
##4089FF	1.00	3.37	6.24	6.24
#FFFFFF	3.37	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4995FF

Deuteranopia (green-blind)

#1284FD

Tritanopia (blue-blind)

#00A5B8

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4089ff;
/* rgb */ color: rgb(64, 137, 255);
/* oklch */ color: oklch(64.5% 0.190 259.6);

Tailwind

colors: {
  custom: {
    50: '#8daaff',
    500: '#4089ff',
    950: '#000000',
  },
}

SCSS

$custom: #4089ff;
$custom-light: #8daaff;
$custom-dark: #000000;

JSON

{
  "hex": "#4089ff",
  "rgb": {
    "r": 64,
    "g": 137,
    "b": 255
  },
  "hsl": {
    "h": 217.068,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64524,
    "c": 0.19025,
    "h": 259.6
  },
  "luminance": 0.26201
}

Semantic roles & 50–950 ramp

primary

#4089FF

secondary

#F0D6AB

accent

#8E00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1018

muted

#7E7F86

Preview Lab

Preview with #4089FF

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

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