#4181BB#4181BB

#4181BB is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.7% C 0.111 H 248.2°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#4181BB
RGB	rgb(65, 129, 187)
HSL	hsl(209, 48%, 49%)
HSV	hsv(209, 65%, 73%)
CMYK	cmyk(65.2%, 31%, 0%, 26.7%)
CIE-LAB	lab(52.30, -2.05, -36.49)
CIE-LCH	lch(52.30, 36.54, 266.78°)
OKLab	oklab(58.72% -0.0413 -0.1031)
OKLCH	oklch(58.72% 0.111 248.2)
XYZ	xyz(18.9965, 20.4103, 49.9425)
Luminance	0.2041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181BB #BB7B41

analogous

#41BBB8 #4181BB #4144BB

triadic

#4181BB #BB4181 #81BB41

tetradic

#4181BB #B841BB #BB7B41 #44BB41

square

#4181BB #B841BB #BB7B41 #44BB41

split-complementary

#4181BB #BB4144 #BBB841

monochromatic

#214260 #31628E #4181BB #6D9FCC #9ABDDC

Accessibility & contrast

On white

4.13

#4181BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#4181BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181BB

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181BB	#FFFFFF	#000000	##000000
##4181BB	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6883BE

Deuteranopia (green-blind)

#5777BA

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4181bb;
/* rgb */ color: rgb(65, 129, 187);
/* oklch */ color: oklch(58.7% 0.111 248.2);

Tailwind

colors: {
  custom: {
    50: '#82a5cf',
    500: '#4181bb',
    950: '#000000',
  },
}

SCSS

$custom: #4181bb;
$custom-light: #82a5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4181bb",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 208.525,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5872,
    "c": 0.11106,
    "h": 248.2
  },
  "luminance": 0.20412
}

Semantic roles & 50–950 ramp

primary

#4181BB

secondary

#C8AB90

accent

#9150D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4181BB

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

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