#3D54BB#3D54BB

#3D54BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.8% C 0.164 H 269.8°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#3D54BB
RGB	rgb(61, 84, 187)
HSL	hsl(229, 51%, 49%)
HSV	hsv(229, 67%, 73%)
CMYK	cmyk(67.4%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(39.44, 25.46, -57.01)
CIE-LCH	lch(39.44, 62.44, 294.06°)
OKLab	oklab(48.76% -0.0005 -0.164)
OKLCH	oklch(48.76% 0.164 269.8)
XYZ	xyz(14.0614, 10.9193, 48.3707)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D54BB #BBA43D

analogous

#3D93BB #3D54BB #653DBB

triadic

#3D54BB #BB3D54 #54BB3D

tetradic

#3D54BB #BB3D93 #BBA43D #3DBB65

square

#3D54BB #BB3D93 #BBA43D #3DBB65

split-complementary

#3D54BB #BB653D #93BB3D

monochromatic

#1F2B5F #2E3F8D #3D54BB #687ACE #96A3DD

Accessibility & contrast

On white

6.60

#3D54BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3D54BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D54BB

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D54BB	#FFFFFF	#000000	##FFFFFF
##3D54BB	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3d54bb;
/* rgb */ color: rgb(61, 84, 187);
/* oklch */ color: oklch(48.8% 0.164 269.8);

Tailwind

colors: {
  custom: {
    50: '#8183d0',
    500: '#3d54bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d54bb;
$custom-light: #8183d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d54bb",
  "rgb": {
    "r": 61,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 229.048,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48761,
    "c": 0.16397,
    "h": 269.8
  },
  "luminance": 0.10921
}

Semantic roles & 50–950 ramp

primary

#3D54BB

secondary

#C8BD8C

accent

#C14EDA

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #3D54BB

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

Preview Lab → · Contrast checker → · Palette generator →