#3129B2#3129B2

#3129B2 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.0% C 0.204 H 274.5°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#3129B2
RGB	rgb(49, 41, 178)
HSL	hsl(244, 63%, 43%)
HSV	hsv(244, 77%, 70%)
CMYK	cmyk(72.5%, 77%, 0%, 30.2%)
CIE-LAB	lab(27.99, 47.18, -70.48)
CIE-LCH	lch(27.99, 84.81, 303.80°)
OKLab	oklab(39.97% 0.0161 -0.2038)
OKLCH	oklch(39.97% 0.204 274.5)
XYZ	xyz(10.0928, 5.4522, 42.6313)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3129B2 #AAB229

analogous

#2965B2 #3129B2 #7629B2

triadic

#3129B2 #B23129 #29B231

tetradic

#3129B2 #B22965 #AAB229 #29B276

square

#3129B2 #B22965 #AAB229 #29B276

split-complementary

#3129B2 #B27629 #65B229

monochromatic

#16124F #231E80 #3129B2 #4D44D4 #7C76DF

Accessibility & contrast

On white

10.04

#3129B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3129B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3129B2

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3129B2	#FFFFFF	#000000	##FFFFFF
##3129B2	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B6

Deuteranopia (green-blind)

#003CB0

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3129b2;
/* rgb */ color: rgb(49, 41, 178);
/* oklch */ color: oklch(40.0% 0.204 274.5);

Tailwind

colors: {
  custom: {
    50: '#7e65ca',
    500: '#3129b2',
    950: '#000000',
  },
}

SCSS

$custom: #3129b2;
$custom-light: #7e65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3129b2",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 178
  },
  "hsl": {
    "h": 243.504,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.39966,
    "c": 0.20447,
    "h": 274.5
  },
  "luminance": 0.05453
}

Semantic roles & 50–950 ramp

primary

#3129B2

secondary

#C2C770

accent

#E642DC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3129B2

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

Preview Lab → · Contrast checker → · Palette generator →