#4187DF#4187DF

#4187DF is a light, vivid cyan. Relative luminance 0.238; OKLCH L 62.1% C 0.151 H 255.5°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#4187DF
RGB	rgb(65, 135, 223)
HSL	hsl(213, 71%, 56%)
HSV	hsv(213, 71%, 87%)
CMYK	cmyk(70.9%, 39.5%, 0%, 12.5%)
CIE-LAB	lab(55.86, 6.97, -51.23)
CIE-LCH	lch(55.86, 51.70, 277.74°)
OKLab	oklab(62.11% -0.0378 -0.1461)
OKLCH	oklch(62.11% 0.151 255.5)
XYZ	xyz(24.1583, 23.7769, 73.1139)
Luminance	0.2378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187DF #DF9941

analogous

#41D6DF #4187DF #4A41DF

triadic

#4187DF #DF4187 #87DF41

tetradic

#4187DF #DF41D6 #DF9941 #41DF4A

square

#4187DF #DF41D6 #DF9941 #41DF4A

split-complementary

#4187DF #DF4A41 #D6DF41

monochromatic

#184C8E #2168C2 #4187DF #75A8E8 #AAC9F1

Accessibility & contrast

On white

3.65

#4187DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#4187DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187DF

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187DF	#FFFFFF	#000000	##000000
##4187DF	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E8EE3

Deuteranopia (green-blind)

#457FDD

Tritanopia (blue-blind)

#009CA8

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4187df;
/* rgb */ color: rgb(65, 135, 223);
/* oklch */ color: oklch(62.1% 0.151 255.5);

Tailwind

colors: {
  custom: {
    50: '#88a9e9',
    500: '#4187df',
    950: '#000000',
  },
}

SCSS

$custom: #4187df;
$custom-light: #88a9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4187df",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 223
  },
  "hsl": {
    "h": 213.418,
    "s": 71.171,
    "l": 56.471
  },
  "oklch": {
    "l": 0.62112,
    "c": 0.15094,
    "h": 255.5
  },
  "luminance": 0.23779
}

Semantic roles & 50–950 ramp

primary

#4187DF

secondary

#DEC29D

accent

#9E3AEE

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4187DF

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

Preview Lab → · Contrast checker → · Palette generator →