#4187D8#4187D8

#4187D8 is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.7% C 0.142 H 253.9°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#4187D8
RGB	rgb(65, 135, 216)
HSL	hsl(212, 66%, 55%)
HSV	hsv(212, 70%, 85%)
CMYK	cmyk(69.9%, 37.5%, 0%, 15.3%)
CIE-LAB	lab(55.49, 4.49, -47.90)
CIE-LCH	lch(55.49, 48.11, 275.35°)
OKLab	oklab(61.7% -0.0395 -0.1364)
OKLCH	oklch(61.7% 0.142 253.9)
XYZ	xyz(23.2340, 23.4071, 68.2460)
Luminance	0.2341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187D8 #D89241

analogous

#41D3D8 #4187D8 #4641D8

triadic

#4187D8 #D84187 #87D841

tetradic

#4187D8 #D841D3 #D89241 #41D846

square

#4187D8 #D841D3 #D89241 #41D846

split-complementary

#4187D8 #D84641 #D3D841

monochromatic

#1B4B84 #2569B6 #4187D8 #74A7E2 #A7C7ED

Accessibility & contrast

On white

3.70

#4187D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#4187D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187D8

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187D8	#FFFFFF	#000000	##000000
##4187D8	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628DDB

Deuteranopia (green-blind)

#4C7ED6

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4187d8;
/* rgb */ color: rgb(65, 135, 216);
/* oklch */ color: oklch(61.7% 0.142 253.9);

Tailwind

colors: {
  custom: {
    50: '#87a9e4',
    500: '#4187d8',
    950: '#000000',
  },
}

SCSS

$custom: #4187d8;
$custom-light: #87a9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4187d8",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 216
  },
  "hsl": {
    "h": 212.185,
    "s": 65.939,
    "l": 55.098
  },
  "oklch": {
    "l": 0.61698,
    "c": 0.14196,
    "h": 253.9
  },
  "luminance": 0.2341
}

Semantic roles & 50–950 ramp

primary

#4187D8

secondary

#DABD9B

accent

#9A3FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #4187D8

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

Preview Lab → · Contrast checker → · Palette generator →