#4189BF#4189BF

#4189BF is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.8% C 0.109 H 243.7°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#4189BF
RGB	rgb(65, 137, 191)
HSL	hsl(206, 50%, 50%)
HSV	hsv(206, 66%, 75%)
CMYK	cmyk(66%, 28.3%, 0%, 25.1%)
CIE-LAB	lab(54.84, -5.36, -34.79)
CIE-LCH	lch(54.84, 35.20, 261.24°)
OKLab	oklab(60.79% -0.0484 -0.0981)
OKLCH	oklch(60.79% 0.109 243.7)
XYZ	xyz(20.5260, 22.7746, 52.5943)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4189BF #BF7741

analogous

#41BFB6 #4189BF #414ABF

triadic

#4189BF #BF4189 #89BF41

tetradic

#4189BF #B641BF #BF7741 #4ABF41

square

#4189BF #B641BF #BF7741 #4ABF41

split-complementary

#4189BF #BF414A #BFB641

monochromatic

#224864 #316892 #4189BF #6FA5CE #9DC2DE

Accessibility & contrast

On white

3.78

#4189BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#4189BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4189BF

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4189BF	#FFFFFF	#000000	##000000
##4189BF	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718AC1

Deuteranopia (green-blind)

#607EBE

Tritanopia (blue-blind)

#00969C

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4189bf;
/* rgb */ color: rgb(65, 137, 191);
/* oklch */ color: oklch(60.8% 0.109 243.7);

Tailwind

colors: {
  custom: {
    50: '#83abd2',
    500: '#4189bf',
    950: '#000000',
  },
}

SCSS

$custom: #4189bf;
$custom-light: #83abd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4189bf",
  "rgb": {
    "r": 65,
    "g": 137,
    "b": 191
  },
  "hsl": {
    "h": 205.714,
    "s": 49.606,
    "l": 50.196
  },
  "oklch": {
    "l": 0.60785,
    "c": 0.10939,
    "h": 243.7
  },
  "luminance": 0.22777
}

Semantic roles & 50–950 ramp

primary

#4189BF

secondary

#CAAA92

accent

#8A4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4189BF

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

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