#4187BF#4187BF

#4187BF is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 60.3% C 0.111 H 245.3°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4187BF
RGB	rgb(65, 135, 191)
HSL	hsl(207, 50%, 50%)
HSV	hsv(207, 66%, 75%)
CMYK	cmyk(66%, 29.3%, 0%, 25.1%)
CIE-LAB	lab(54.25, -4.20, -35.71)
CIE-LCH	lch(54.25, 35.96, 263.29°)
OKLab	oklab(60.32% -0.0463 -0.1008)
OKLCH	oklch(60.32% 0.111 245.3)
XYZ	xyz(20.2444, 22.2113, 52.5004)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187BF #BF7941

analogous

#41BFB8 #4187BF #4148BF

triadic

#4187BF #BF4187 #87BF41

tetradic

#4187BF #B841BF #BF7941 #48BF41

square

#4187BF #B841BF #BF7941 #48BF41

split-complementary

#4187BF #BF4148 #BFB841

monochromatic

#224664 #316792 #4187BF #6FA4CE #9DC1DE

Accessibility & contrast

On white

3.86

#4187BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#4187BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187BF

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187BF	#FFFFFF	#000000	##000000
##4187BF	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E89C1

Deuteranopia (green-blind)

#5D7CBE

Tritanopia (blue-blind)

#00949B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4187bf;
/* rgb */ color: rgb(65, 135, 191);
/* oklch */ color: oklch(60.3% 0.111 245.3);

Tailwind

colors: {
  custom: {
    50: '#82a9d2',
    500: '#4187bf',
    950: '#000000',
  },
}

SCSS

$custom: #4187bf;
$custom-light: #82a9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4187bf",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 191
  },
  "hsl": {
    "h": 206.667,
    "s": 49.606,
    "l": 50.196
  },
  "oklch": {
    "l": 0.6032,
    "c": 0.11092,
    "h": 245.3
  },
  "luminance": 0.22213
}

Semantic roles & 50–950 ramp

primary

#4187BF

secondary

#CAAB92

accent

#8C4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4187BF

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

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