#3129B3#3129B3

#3129B3 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.206 H 274.4°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX#3129B3
RGBrgb(49, 41, 179)
HSLhsl(243, 63%, 43%)
HSVhsv(243, 77%, 70%)
CMYKcmyk(72.6%, 77.1%, 0%, 29.8%)
CIE-LABlab(28.09, 47.49, -70.89)
CIE-LCHlch(28.09, 85.33, 303.82°)
OKLaboklab(40.07% 0.0159 -0.205)
OKLCHoklch(40.07% 0.206 274.4)
XYZxyz(10.1935, 5.4925, 43.1620)
Luminance0.0549 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3129B3 #ABB329
analogous
#2966B3 #3129B3 #7629B3
triadic
#3129B3 #B33129 #29B331
tetradic
#3129B3 #B32966 #ABB329 #29B376
square
#3129B3 #B32966 #ABB329 #29B376
split-complementary
#3129B3 #B37629 #66B329
monochromatic
#16124F #231E81 #3129B3 #4D45D4 #7D77E0

Accessibility & contrast

On white

10.01
#3129B3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.10
#3129B3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3129B3
10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3129B3#FFFFFF#000000##FFFFFF
##3129B31.0010.012.1010.01
#FFFFFF10.011.0021.001.00
#0000002.1021.001.0021.00
##FFFFFF10.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0048B7
Deuteranopia (green-blind)
#003CB1
Tritanopia (blue-blind)
#00526D
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #3129b3;
/* rgb */ color: rgb(49, 41, 179);
/* oklch */ color: oklch(40.1% 0.206 274.4);
Tailwind
colors: {
  custom: {
    50: '#7e66cb',
    500: '#3129b3',
    950: '#000000',
  },
}
SCSS
$custom: #3129b3;
$custom-light: #7e66cb;
$custom-dark: #000000;
JSON
{
  "hex": "#3129b3",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 179
  },
  "hsl": {
    "h": 243.478,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40074,
    "c": 0.20566,
    "h": 274.4
  },
  "luminance": 0.05494
}

Semantic roles & 50–950 ramp

primary
#3129B3
secondary
#C2C770
accent
#E642DC
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0613
muted
#7D7A82

Preview Lab

Preview with #3129B3

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

Preview Lab → · Contrast checker → · Palette generator →

#3129B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva