#3129B7#3129B7

#3129B7 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.5% C 0.210 H 274.1°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#3129B7
RGB	rgb(49, 41, 183)
HSL	hsl(243, 63%, 44%)
HSV	hsv(243, 78%, 72%)
CMYK	cmyk(73.2%, 77.6%, 0%, 28.2%)
CIE-LAB	lab(28.53, 48.77, -72.56)
CIE-LCH	lch(28.53, 87.42, 303.91°)
OKLab	oklab(40.51% 0.015 -0.2099)
OKLCH	oklch(40.51% 0.21 274.1)
XYZ	xyz(10.6040, 5.6567, 45.3236)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3129B7 #AFB729

analogous

#2968B7 #3129B7 #7829B7

triadic

#3129B7 #B73129 #29B731

tetradic

#3129B7 #B72968 #AFB729 #29B778

square

#3129B7 #B72968 #AFB729 #29B778

split-complementary

#3129B7 #B77829 #68B729

monochromatic

#161353 #241E85 #3129B7 #4F47D6 #7F79E1

Accessibility & contrast

On white

9.85

#3129B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3129B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3129B7

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3129B7	#FFFFFF	#000000	##FFFFFF
##3129B7	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABB

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#00546F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3129b7;
/* rgb */ color: rgb(49, 41, 183);
/* oklch */ color: oklch(40.5% 0.210 274.1);

Tailwind

colors: {
  custom: {
    50: '#7f66ce',
    500: '#3129b7',
    950: '#000000',
  },
}

SCSS

$custom: #3129b7;
$custom-light: #7f66ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3129b7",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 183
  },
  "hsl": {
    "h": 243.38,
    "s": 63.393,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40508,
    "c": 0.21042,
    "h": 274.1
  },
  "luminance": 0.05658
}

Semantic roles & 50–950 ramp

primary

#3129B7

secondary

#C4C973

accent

#E641DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3129B7

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

Preview Lab → · Contrast checker → · Palette generator →