#3D43B8#3D43B8

#3D43B8 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.3% C 0.181 H 274.3°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3D43B8
RGB	rgb(61, 67, 184)
HSL	hsl(237, 50%, 48%)
HSV	hsv(237, 67%, 72%)
CMYK	cmyk(66.8%, 63.6%, 0%, 27.8%)
CIE-LAB	lab(34.94, 35.27, -62.59)
CIE-LCH	lch(34.94, 71.84, 299.40°)
OKLab	oklab(45.34% 0.0136 -0.1805)
OKLCH	oklch(45.34% 0.181 274.3)
XYZ	xyz(12.5805, 8.4660, 46.3092)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D43B8 #B8B23D

analogous

#3D80B8 #3D43B8 #743DB8

triadic

#3D43B8 #B83D43 #43B83D

tetradic

#3D43B8 #B83D80 #B8B23D #3DB874

square

#3D43B8 #B83D80 #B8B23D #3DB874

split-complementary

#3D43B8 #B8743D #80B83D

monochromatic

#1F225C #2E328A #3D43B8 #666BCC #9497DB

Accessibility & contrast

On white

7.80

#3D43B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3D43B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D43B8

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D43B8	#FFFFFF	#000000	##FFFFFF
##3D43B8	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#004DB6

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3d43b8;
/* rgb */ color: rgb(61, 67, 184);
/* oklch */ color: oklch(45.3% 0.181 274.3);

Tailwind

colors: {
  custom: {
    50: '#8277ce',
    500: '#3d43b8',
    950: '#000000',
  },
}

SCSS

$custom: #3d43b8;
$custom-light: #8277ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3d43b8",
  "rgb": {
    "r": 61,
    "g": 67,
    "b": 184
  },
  "hsl": {
    "h": 237.073,
    "s": 50.204,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4534,
    "c": 0.18104,
    "h": 274.3
  },
  "luminance": 0.08467
}

Semantic roles & 50–950 ramp

primary

#3D43B8

secondary

#C7C48A

accent

#D34EDA

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3D43B8

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

Preview Lab → · Contrast checker → · Palette generator →