#3051B5#3051B5

#3051B5 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.0% C 0.163 H 266.3°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#3051B5
RGB	rgb(48, 81, 181)
HSL	hsl(225, 58%, 45%)
HSV	hsv(225, 73%, 71%)
CMYK	cmyk(73.5%, 55.2%, 0%, 29%)
CIE-LAB	lab(37.57, 23.36, -56.56)
CIE-LCH	lch(37.57, 61.20, 292.44°)
OKLab	oklab(47.04% -0.0105 -0.163)
OKLCH	oklch(47.04% 0.163 266.3)
XYZ	xyz(12.4989, 9.8481, 44.9493)
Luminance	0.0985 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3051B5 #B59430

analogous

#3093B5 #3051B5 #5230B5

triadic

#3051B5 #B53051 #51B530

tetradic

#3051B5 #B53093 #B59430 #30B552

square

#3051B5 #B53093 #B59430 #30B552

split-complementary

#3051B5 #B55230 #93B530

monochromatic

#162654 #233B85 #3051B5 #5171D1 #8298DE

Accessibility & contrast

On white

7.07

#3051B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#3051B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3051B5

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3051B5	#FFFFFF	#000000	##FFFFFF
##3051B5	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB8

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3051b5;
/* rgb */ color: rgb(48, 81, 181);
/* oklch */ color: oklch(47.0% 0.163 266.3);

Tailwind

colors: {
  custom: {
    50: '#7b81cc',
    500: '#3051b5',
    950: '#000000',
  },
}

SCSS

$custom: #3051b5;
$custom-light: #7b81cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3051b5",
  "rgb": {
    "r": 48,
    "g": 81,
    "b": 181
  },
  "hsl": {
    "h": 225.113,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.47037,
    "c": 0.1633,
    "h": 266.3
  },
  "luminance": 0.09849
}

Semantic roles & 50–950 ramp

primary

#3051B5

secondary

#C7B47A

accent

#BB46E1

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3051B5

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

Preview Lab → · Contrast checker → · Palette generator →