#4183BB#4183BB

#4183BB is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 59.2% C 0.109 H 246.6°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#4183BB
RGB	rgb(65, 131, 187)
HSL	hsl(208, 48%, 49%)
HSV	hsv(208, 65%, 73%)
CMYK	cmyk(65.2%, 29.9%, 0%, 26.7%)
CIE-LAB	lab(52.89, -3.23, -35.56)
CIE-LCH	lch(52.89, 35.71, 264.81°)
OKLab	oklab(59.18% -0.0434 -0.1004)
OKLCH	oklch(59.18% 0.109 246.6)
XYZ	xyz(19.2626, 20.9423, 50.0312)
Luminance	0.2094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183BB #BB7941

analogous

#41BBB6 #4183BB #4146BB

triadic

#4183BB #BB4183 #83BB41

tetradic

#4183BB #B641BB #BB7941 #46BB41

square

#4183BB #B641BB #BB7941 #46BB41

split-complementary

#4183BB #BB4146 #BBB641

monochromatic

#214360 #31638E #4183BB #6DA1CC #9ABEDC

Accessibility & contrast

On white

4.05

#4183BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#4183BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183BB

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183BB	#FFFFFF	#000000	##000000
##4183BB	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A85BD

Deuteranopia (green-blind)

#5A79BA

Tritanopia (blue-blind)

#009097

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4183bb;
/* rgb */ color: rgb(65, 131, 187);
/* oklch */ color: oklch(59.2% 0.109 246.6);

Tailwind

colors: {
  custom: {
    50: '#82a6cf',
    500: '#4183bb',
    950: '#000000',
  },
}

SCSS

$custom: #4183bb;
$custom-light: #82a6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4183bb",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 187
  },
  "hsl": {
    "h": 207.541,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.59183,
    "c": 0.10937,
    "h": 246.6
  },
  "luminance": 0.20944
}

Semantic roles & 50–950 ramp

primary

#4183BB

secondary

#C8AA90

accent

#8E50D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4183BB

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

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