#4183BF#4183BF

#4183BF is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.4% C 0.114 H 248.3°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#4183BF
RGB	rgb(65, 131, 191)
HSL	hsl(209, 50%, 50%)
HSV	hsv(209, 66%, 75%)
CMYK	cmyk(66%, 31.4%, 0%, 25.1%)
CIE-LAB	lab(53.08, -1.86, -37.55)
CIE-LCH	lch(53.08, 37.60, 267.17°)
OKLab	oklab(59.4% -0.0422 -0.1062)
OKLCH	oklch(59.4% 0.114 248.3)
XYZ	xyz(19.6967, 21.1160, 52.3179)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183BF #BF7D41

analogous

#41BFBC #4183BF #4144BF

triadic

#4183BF #BF4183 #83BF41

tetradic

#4183BF #BC41BF #BF7D41 #44BF41

square

#4183BF #BC41BF #BF7D41 #44BF41

split-complementary

#4183BF #BF4144 #BFBC41

monochromatic

#224464 #316492 #4183BF #6FA1CE #9DBFDE

Accessibility & contrast

On white

4.02

#4183BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#4183BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183BF

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183BF	#FFFFFF	#000000	##000000
##4183BF	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6985C2

Deuteranopia (green-blind)

#5779BE

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4183bf;
/* rgb */ color: rgb(65, 131, 191);
/* oklch */ color: oklch(59.4% 0.114 248.3);

Tailwind

colors: {
  custom: {
    50: '#82a6d2',
    500: '#4183bf',
    950: '#000000',
  },
}

SCSS

$custom: #4183bf;
$custom-light: #82a6d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4183bf",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 191
  },
  "hsl": {
    "h": 208.571,
    "s": 49.606,
    "l": 50.196
  },
  "oklch": {
    "l": 0.59395,
    "c": 0.11425,
    "h": 248.3
  },
  "luminance": 0.21118
}

Semantic roles & 50–950 ramp

primary

#4183BF

secondary

#CAAD92

accent

#914FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4183BF

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

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