#40839D#40839D

#40839D is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.7% C 0.079 H 226.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX#40839D
RGBrgb(64, 131, 157)
HSLhsl(197, 42%, 43%)
HSVhsv(197, 59%, 62%)
CMYKcmyk(59.2%, 16.6%, 0%, 38.4%)
CIE-LABlab(51.56, -13.33, -20.32)
CIE-LCHlch(51.56, 24.30, 236.73°)
OKLaboklab(57.7% -0.0546 -0.0566)
OKLCHoklch(57.7% 0.079 226)
XYZxyz(16.3141, 19.7554, 34.8452)
Luminance0.1976 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40839D #9D5A40
analogous
#409D88 #40839D #40549D
triadic
#40839D #9D4083 #839D40
tetradic
#40839D #88409D #9D5A40 #549D40
square
#40839D #88409D #9D5A40 #549D40
split-complementary
#40839D #9D4054 #9D8840
monochromatic
#1D3A46 #2E5F72 #40839D #5DA2BD #89BBCF

Accessibility & contrast

On white

4.24
#40839D on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.95
#40839D on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #40839D
4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40839D#FFFFFF#000000##000000
##40839D1.004.244.954.95
#FFFFFF4.241.0021.0021.00
#0000004.9521.001.001.00
##0000004.9521.001.001.00

Color blindness preview

Protanopia (red-blind)
#75819E
Deuteranopia (green-blind)
#68779D
Tritanopia (blue-blind)
#008B8B
Achromatopsia (no color)
#7B7B7B

Design tokens & code

CSS
--color: #40839d;
/* rgb */ color: rgb(64, 131, 157);
/* oklch */ color: oklch(57.7% 0.079 226.0);
Tailwind
colors: {
  custom: {
    50: '#7da7ba',
    500: '#40839d',
    950: '#000000',
  },
}
SCSS
$custom: #40839d;
$custom-light: #7da7ba;
$custom-dark: #000000;
JSON
{
  "hex": "#40839d",
  "rgb": {
    "r": 64,
    "g": 131,
    "b": 157
  },
  "hsl": {
    "h": 196.774,
    "s": 42.081,
    "l": 43.333
  },
  "oklch": {
    "l": 0.57696,
    "c": 0.07859,
    "h": 226
  },
  "luminance": 0.19757
}

Semantic roles & 50–950 ramp

primary
#40839D
secondary
#B9907F
accent
#7956D2
background
#F8FAFB
surface
#EFF4F6
border
#CACED0
text
#0A0F11
muted
#7C7F80

Preview Lab

Preview with #40839D

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

Preview Lab → · Contrast checker → · Palette generator →

#40839D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva