#4087B3#4087B3

#4087B3 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.7% C 0.098 H 238.6°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4087B3
RGB	rgb(64, 135, 179)
HSL	hsl(203, 47%, 48%)
HSV	hsv(203, 64%, 70%)
CMYK	cmyk(64.2%, 24.6%, 0%, 29.8%)
CIE-LAB	lab(53.68, -8.43, -29.75)
CIE-LCH	lch(53.68, 30.92, 254.19°)
OKLab	oklab(59.68% -0.0509 -0.0835)
OKLCH	oklch(59.68% 0.098 238.6)
XYZ	xyz(18.9119, 21.6707, 45.8253)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4087B3 #B36C40

analogous

#40B3A6 #4087B3 #404DB3

triadic

#4087B3 #B34087 #87B340

tetradic

#4087B3 #A640B3 #B36C40 #4DB340

square

#4087B3 #A640B3 #B36C40 #4DB340

split-complementary

#4087B3 #B3404D #B3A640

monochromatic

#204359 #306586 #4087B3 #67A4C9 #94BFD9

Accessibility & contrast

On white

3.94

#4087B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4087B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4087B3

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4087B3	#FFFFFF	#000000	##000000
##4087B3	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B5

Deuteranopia (green-blind)

#637BB2

Tritanopia (blue-blind)

#009296

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4087b3;
/* rgb */ color: rgb(64, 135, 179);
/* oklch */ color: oklch(59.7% 0.098 238.6);

Tailwind

colors: {
  custom: {
    50: '#80a9ca',
    500: '#4087b3',
    950: '#000000',
  },
}

SCSS

$custom: #4087b3;
$custom-light: #80a9ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4087b3",
  "rgb": {
    "r": 64,
    "g": 135,
    "b": 179
  },
  "hsl": {
    "h": 202.957,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59678,
    "c": 0.09785,
    "h": 238.6
  },
  "luminance": 0.21673
}

Semantic roles & 50–950 ramp

primary

#4087B3

secondary

#C4A18A

accent

#8451D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4087B3

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

Preview Lab → · Contrast checker → · Palette generator →