#4087BB#4087BB

#4087BB is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 60.1% C 0.107 H 243.1°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4087BB
RGB	rgb(64, 135, 187)
HSL	hsl(205, 49%, 49%)
HSV	hsv(205, 66%, 73%)
CMYK	cmyk(65.8%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(54.03, -5.73, -33.77)
CIE-LCH	lch(54.03, 34.26, 260.36°)
OKLab	oklab(60.08% -0.0483 -0.0952)
OKLCH	oklch(60.08% 0.107 243.1)
XYZ	xyz(19.7446, 22.0038, 50.2107)
Luminance	0.2201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4087BB #BB7440

analogous

#40BBB2 #4087BB #404ABB

triadic

#4087BB #BB4087 #87BB40

tetradic

#4087BB #B240BB #BB7440 #4ABB40

square

#4087BB #B240BB #BB7440 #4ABB40

split-complementary

#4087BB #BB404A #BBB240

monochromatic

#214560 #30668D #4087BB #6CA4CD #99C0DC

Accessibility & contrast

On white

3.89

#4087BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#4087BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4087BB

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4087BB	#FFFFFF	#000000	##000000
##4087BB	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BD

Deuteranopia (green-blind)

#5F7CBA

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4087bb;
/* rgb */ color: rgb(64, 135, 187);
/* oklch */ color: oklch(60.1% 0.107 243.1);

Tailwind

colors: {
  custom: {
    50: '#81a9cf',
    500: '#4087bb',
    950: '#000000',
  },
}

SCSS

$custom: #4087bb;
$custom-light: #81a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4087bb",
  "rgb": {
    "r": 64,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 205.366,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.60077,
    "c": 0.10672,
    "h": 243.1
  },
  "luminance": 0.22006
}

Semantic roles & 50–950 ramp

primary

#4087BB

secondary

#C8A78F

accent

#894FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4087BB

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

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