#4181B9#4181B9

#4181B9 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.6% C 0.109 H 247.3°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#4181B9
RGB	rgb(65, 129, 185)
HSL	hsl(208, 48%, 49%)
HSV	hsv(208, 65%, 73%)
CMYK	cmyk(64.9%, 30.3%, 0%, 27.5%)
CIE-LAB	lab(52.20, -2.74, -35.49)
CIE-LCH	lch(52.20, 35.59, 265.59°)
OKLab	oklab(58.61% -0.0419 -0.1002)
OKLCH	oklch(58.61% 0.109 247.3)
XYZ	xyz(18.7839, 20.3252, 48.8228)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181B9 #B97941

analogous

#41B9B5 #4181B9 #4145B9

triadic

#4181B9 #B94181 #81B941

tetradic

#4181B9 #B541B9 #B97941 #45B941

square

#4181B9 #B541B9 #B97941 #45B941

split-complementary

#4181B9 #B94145 #B9B541

monochromatic

#21425E #31618C #4181B9 #6C9FCB #99BCDB

Accessibility & contrast

On white

4.15

#4181B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#4181B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181B9

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181B9	#FFFFFF	#000000	##000000
##4181B9	1.00	4.15	5.07	5.07
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6883BB

Deuteranopia (green-blind)

#5877B8

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4181b9;
/* rgb */ color: rgb(65, 129, 185);
/* oklch */ color: oklch(58.6% 0.109 247.3);

Tailwind

colors: {
  custom: {
    50: '#81a5ce',
    500: '#4181b9',
    950: '#000000',
  },
}

SCSS

$custom: #4181b9;
$custom-light: #81a5ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4181b9",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 185
  },
  "hsl": {
    "h": 208,
    "s": 48,
    "l": 49.02
  },
  "oklch": {
    "l": 0.58614,
    "c": 0.1086,
    "h": 247.3
  },
  "luminance": 0.20327
}

Semantic roles & 50–950 ramp

primary

#4181B9

secondary

#C7A98F

accent

#8F50D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4181B9

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

Preview Lab → · Contrast checker → · Palette generator →