#515DB2#515DB2

#515DB2 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.2% C 0.134 H 274.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#515DB2
RGB	rgb(81, 93, 178)
HSL	hsl(233, 39%, 51%)
HSV	hsv(233, 54%, 70%)
CMYK	cmyk(54.5%, 47.8%, 0%, 30.2%)
CIE-LAB	lab(42.45, 20.31, -46.84)
CIE-LCH	lch(42.45, 51.05, 293.44°)
OKLab	oklab(51.16% 0.0108 -0.1335)
OKLCH	oklch(51.16% 0.134 274.6)
XYZ	xyz(15.3410, 12.7913, 43.7714)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DB2 #B2A651

analogous

#518DB2 #515DB2 #7551B2

triadic

#515DB2 #B2515D #5DB251

tetradic

#515DB2 #B2518D #B2A651 #51B275

square

#515DB2 #B2518D #B2A651 #51B275

split-complementary

#515DB2 #B27551 #8DB251

monochromatic

#2A305F #3D4689 #515DB2 #7B84C5 #A6ACD8

Accessibility & contrast

On white

5.90

#515DB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#515DB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DB2

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DB2	#FFFFFF	#000000	##FFFFFF
##515DB2	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3668B5

Deuteranopia (green-blind)

#2A60B0

Tritanopia (blue-blind)

#21707F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #515db2;
/* rgb */ color: rgb(81, 93, 178);
/* oklch */ color: oklch(51.2% 0.134 274.6);

Tailwind

colors: {
  custom: {
    50: '#898ac9',
    500: '#515db2',
    950: '#000000',
  },
}

SCSS

$custom: #515db2;
$custom-light: #898ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#515db2",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 178
  },
  "hsl": {
    "h": 232.577,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51157,
    "c": 0.13389,
    "h": 274.6
  },
  "luminance": 0.12792
}

Semantic roles & 50–950 ramp

primary

#515DB2

secondary

#C5C09A

accent

#C059CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #515DB2

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

Preview Lab → · Contrast checker → · Palette generator →