#4187EA#4187EA

#4187EA is a light, vivid blue. Relative luminance 0.244; OKLCH L 62.8% C 0.165 H 257.6°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#4187EA
RGB	rgb(65, 135, 234)
HSL	hsl(215, 80%, 59%)
HSV	hsv(215, 72%, 92%)
CMYK	cmyk(72.2%, 42.3%, 0%, 8.2%)
CIE-LAB	lab(56.48, 10.88, -56.40)
CIE-LCH	lch(56.48, 57.44, 280.92°)
OKLab	oklab(62.79% -0.0355 -0.1613)
OKLCH	oklch(62.79% 0.165 257.6)
XYZ	xyz(25.6898, 24.3894, 81.1797)
Luminance	0.2439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187EA #EAA441

analogous

#41DBEA #4187EA #4F41EA

triadic

#4187EA #EA4187 #87EA41

tetradic

#4187EA #EA41DB #EAA441 #41EA4F

square

#4187EA #EA41DB #EAA441 #41EA4F

split-complementary

#4187EA #EA4F41 #DBEA41

monochromatic

#124C9F #1867D6 #4187EA #78AAF0 #AFCDF6

Accessibility & contrast

On white

3.57

#4187EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#4187EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187EA

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187EA	#FFFFFF	#000000	##000000
##4187EA	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5790EE

Deuteranopia (green-blind)

#3980E8

Tritanopia (blue-blind)

#009EAD

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #4187ea;
/* rgb */ color: rgb(65, 135, 234);
/* oklch */ color: oklch(62.8% 0.165 257.6);

Tailwind

colors: {
  custom: {
    50: '#8aa9f1',
    500: '#4187ea',
    950: '#000000',
  },
}

SCSS

$custom: #4187ea;
$custom-light: #8aa9f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4187ea",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 234
  },
  "hsl": {
    "h": 215.148,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.62785,
    "c": 0.16515,
    "h": 257.6
  },
  "luminance": 0.24392
}

Semantic roles & 50–950 ramp

primary

#4187EA

secondary

#E5C9A2

accent

#A531F7

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F17

muted

#7E7F85

Preview Lab

Preview with #4187EA

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

Preview Lab → · Contrast checker → · Palette generator →