#40839F#40839F

#40839F is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.080 H 227.9°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#40839F
RGB	rgb(64, 131, 159)
HSL	hsl(198, 43%, 44%)
HSV	hsv(198, 60%, 62%)
CMYK	cmyk(59.7%, 17.6%, 0%, 37.6%)
CIE-LAB	lab(51.64, -12.70, -21.36)
CIE-LCH	lch(51.64, 24.85, 239.27°)
OKLab	oklab(57.78% -0.0538 -0.0595)
OKLCH	oklch(57.78% 0.08 227.9)
XYZ	xyz(16.4862, 19.8242, 35.7518)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40839F #9F5C40

analogous

#409F8B #40839F #40539F

triadic

#40839F #9F4083 #839F40

tetradic

#40839F #8B409F #9F5C40 #539F40

square

#40839F #8B409F #9F5C40 #539F40

split-complementary

#40839F #9F4053 #9F8B40

monochromatic

#1D3B48 #2E5F73 #40839F #5EA2BE #8ABBD0

Accessibility & contrast

On white

4.23

#40839F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#40839F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #40839F

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40839F	#FFFFFF	#000000	##000000
##40839F	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7481A0

Deuteranopia (green-blind)

#67779F

Tritanopia (blue-blind)

#008B8C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #40839f;
/* rgb */ color: rgb(64, 131, 159);
/* oklch */ color: oklch(57.8% 0.080 227.9);

Tailwind

colors: {
  custom: {
    50: '#7ea7bb',
    500: '#40839f',
    950: '#000000',
  },
}

SCSS

$custom: #40839f;
$custom-light: #7ea7bb;
$custom-dark: #000000;

JSON

{
  "hex": "#40839f",
  "rgb": {
    "r": 64,
    "g": 131,
    "b": 159
  },
  "hsl": {
    "h": 197.684,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.57784,
    "c": 0.08023,
    "h": 227.9
  },
  "luminance": 0.19826
}

Semantic roles & 50–950 ramp

primary

#40839F

secondary

#BB9180

accent

#7A55D2

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #40839F

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

Preview Lab → · Contrast checker → · Palette generator →