#4089BF#4089BF

#4089BF is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.7% C 0.110 H 243.5°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#4089BF
RGB	rgb(64, 137, 191)
HSL	hsl(206, 50%, 50%)
HSV	hsv(206, 66%, 75%)
CMYK	cmyk(66.5%, 28.3%, 0%, 25.1%)
CIE-LAB	lab(54.80, -5.53, -34.84)
CIE-LCH	lch(54.80, 35.28, 260.98°)
OKLab	oklab(60.75% -0.0491 -0.0983)
OKLCH	oklch(60.75% 0.11 243.5)
XYZ	xyz(20.4604, 22.7408, 52.5912)
Luminance	0.2274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4089BF #BF7640

analogous

#40BFB6 #4089BF #4049BF

triadic

#4089BF #BF4089 #89BF40

tetradic

#4089BF #B640BF #BF7640 #49BF40

square

#4089BF #B640BF #BF7640 #49BF40

split-complementary

#4089BF #BF4049 #BFB640

monochromatic

#214763 #316891 #4089BF #6EA5CE #9CC2DE

Accessibility & contrast

On white

3.78

#4089BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#4089BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4089BF

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4089BF	#FFFFFF	#000000	##000000
##4089BF	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718AC1

Deuteranopia (green-blind)

#5F7EBE

Tritanopia (blue-blind)

#00969C

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4089bf;
/* rgb */ color: rgb(64, 137, 191);
/* oklch */ color: oklch(60.7% 0.110 243.5);

Tailwind

colors: {
  custom: {
    50: '#82abd2',
    500: '#4089bf',
    950: '#000000',
  },
}

SCSS

$custom: #4089bf;
$custom-light: #82abd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4089bf",
  "rgb": {
    "r": 64,
    "g": 137,
    "b": 191
  },
  "hsl": {
    "h": 205.512,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.60748,
    "c": 0.10984,
    "h": 243.5
  },
  "luminance": 0.22743
}

Semantic roles & 50–950 ramp

primary

#4089BF

secondary

#CAA991

accent

#8A4ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4089BF

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

Preview Lab → · Contrast checker → · Palette generator →