#515BE1#515BE1

#515BE1 is a mid, highly saturated blue. Relative luminance 0.147; OKLCH L 54.2% C 0.201 H 274.3°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#515BE1
RGB	rgb(81, 91, 225)
HSL	hsl(236, 71%, 60%)
HSV	hsv(236, 64%, 88%)
CMYK	cmyk(64%, 59.6%, 0%, 11.8%)
CIE-LAB	lab(45.17, 37.25, -69.54)
CIE-LCH	lch(45.17, 78.89, 298.17°)
OKLab	oklab(54.22% 0.015 -0.2003)
OKLCH	oklch(54.22% 0.201 274.3)
XYZ	xyz(20.7205, 14.6660, 72.9584)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BE1 #E1D751

analogous

#51A3E1 #515BE1 #8F51E1

triadic

#515BE1 #E1515B #5BE151

tetradic

#515BE1 #E151A3 #E1D751 #51E18F

square

#515BE1 #E151A3 #E1D751 #51E18F

split-complementary

#515BE1 #E18F51 #A3E151

monochromatic

#1B249D #2430D1 #515BE1 #858CEA #B9BDF3

Accessibility & contrast

On white

5.34

#515BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#515BE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BE1

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BE1	#FFFFFF	#000000	##FFFFFF
##515BE1	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E5

Deuteranopia (green-blind)

#0065DE

Tritanopia (blue-blind)

#007C95

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #515be1;
/* rgb */ color: rgb(81, 91, 225);
/* oklch */ color: oklch(54.2% 0.201 274.3);

Tailwind

colors: {
  custom: {
    50: '#9189eb',
    500: '#515be1',
    950: '#000000',
  },
}

SCSS

$custom: #515be1;
$custom-light: #9189eb;
$custom-dark: #000000;

JSON

{
  "hex": "#515be1",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 225
  },
  "hsl": {
    "h": 235.833,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.54223,
    "c": 0.20082,
    "h": 274.3
  },
  "luminance": 0.14668
}

Semantic roles & 50–950 ramp

primary

#515BE1

secondary

#E3DFAB

accent

#E13AED

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BE1

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

Preview Lab → · Contrast checker → · Palette generator →