#3129B1#3129B1

#3129B1 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.9% C 0.203 H 274.6°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#3129B1
RGB	rgb(49, 41, 177)
HSL	hsl(244, 62%, 43%)
HSV	hsv(244, 77%, 69%)
CMYK	cmyk(72.3%, 76.8%, 0%, 30.6%)
CIE-LAB	lab(27.88, 46.85, -70.06)
CIE-LCH	lch(27.88, 84.28, 303.78°)
OKLab	oklab(39.86% 0.0163 -0.2026)
OKLCH	oklch(39.86% 0.203 274.6)
XYZ	xyz(9.9927, 5.4122, 42.1045)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3129B1 #A9B129

analogous

#2965B1 #3129B1 #7529B1

triadic

#3129B1 #B13129 #29B131

tetradic

#3129B1 #B12965 #A9B129 #29B175

square

#3129B1 #B12965 #A9B129 #29B175

split-complementary

#3129B1 #B17529 #65B129

monochromatic

#15124E #231D7F #3129B1 #4C44D4 #7C75DF

Accessibility & contrast

On white

10.08

#3129B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3129B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3129B1

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3129B1	#FFFFFF	#000000	##FFFFFF
##3129B1	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003BAF

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3129b1;
/* rgb */ color: rgb(49, 41, 177);
/* oklch */ color: oklch(39.9% 0.203 274.6);

Tailwind

colors: {
  custom: {
    50: '#7d65ca',
    500: '#3129b1',
    950: '#000000',
  },
}

SCSS

$custom: #3129b1;
$custom-light: #7d65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3129b1",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 177
  },
  "hsl": {
    "h": 243.529,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39858,
    "c": 0.20328,
    "h": 274.6
  },
  "luminance": 0.05413
}

Semantic roles & 50–950 ramp

primary

#3129B1

secondary

#C1C76F

accent

#E542DC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3129B1

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

Preview Lab → · Contrast checker → · Palette generator →