#3051BB#3051BB

#3051BB is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.5% C 0.171 H 266.6°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#3051BB
RGB	rgb(48, 81, 187)
HSL	hsl(226, 59%, 46%)
HSV	hsv(226, 74%, 73%)
CMYK	cmyk(74.3%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(38.02, 25.61, -59.35)
CIE-LCH	lch(38.02, 64.64, 293.34°)
OKLab	oklab(47.52% -0.0101 -0.1712)
OKLCH	oklch(47.52% 0.171 266.6)
XYZ	xyz(13.1279, 10.0997, 48.2616)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3051BB #BB9A30

analogous

#3096BB #3051BB #5430BB

triadic

#3051BB #BB3051 #51BB30

tetradic

#3051BB #BB3096 #BB9A30 #30BB54

square

#3051BB #BB3096 #BB9A30 #30BB54

split-complementary

#3051BB #BB5430 #96BB30

monochromatic

#17275A #233C8A #3051BB #5573D3 #869BE0

Accessibility & contrast

On white

6.95

#3051BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3051BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3051BB

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3051BB	#FFFFFF	#000000	##FFFFFF
##3051BB	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3051bb;
/* rgb */ color: rgb(48, 81, 187);
/* oklch */ color: oklch(47.5% 0.171 266.6);

Tailwind

colors: {
  custom: {
    50: '#7c81d0',
    500: '#3051bb',
    950: '#000000',
  },
}

SCSS

$custom: #3051bb;
$custom-light: #7c81d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3051bb",
  "rgb": {
    "r": 48,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 225.755,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4752,
    "c": 0.17147,
    "h": 266.6
  },
  "luminance": 0.10101
}

Semantic roles & 50–950 ramp

primary

#3051BB

secondary

#C9B77D

accent

#BD45E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3051BB

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

Preview Lab → · Contrast checker → · Palette generator →