#515CB2#515CB2

#515CB2 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.135 H 275.1°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#515CB2
RGB	rgb(81, 92, 178)
HSL	hsl(233, 39%, 51%)
HSV	hsv(233, 54%, 70%)
CMYK	cmyk(54.5%, 48.3%, 0%, 30.2%)
CIE-LAB	lab(42.18, 20.94, -47.26)
CIE-LCH	lch(42.18, 51.69, 293.89°)
OKLab	oklab(50.96% 0.0119 -0.1347)
OKLCH	oklch(50.96% 0.135 275.1)
XYZ	xyz(15.2538, 12.6170, 43.7424)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CB2 #B2A751

analogous

#518CB2 #515CB2 #7651B2

triadic

#515CB2 #B2515C #5CB251

tetradic

#515CB2 #B2518C #B2A751 #51B276

square

#515CB2 #B2518C #B2A751 #51B276

split-complementary

#515CB2 #B27651 #8CB251

monochromatic

#2A305F #3D4589 #515CB2 #7B84C5 #A6ABD8

Accessibility & contrast

On white

5.96

#515CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#515CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CB2

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CB2	#FFFFFF	#000000	##FFFFFF
##515CB2	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3468B5

Deuteranopia (green-blind)

#2860B0

Tritanopia (blue-blind)

#216F7E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #515cb2;
/* rgb */ color: rgb(81, 92, 178);
/* oklch */ color: oklch(51.0% 0.135 275.1);

Tailwind

colors: {
  custom: {
    50: '#898ac9',
    500: '#515cb2',
    950: '#000000',
  },
}

SCSS

$custom: #515cb2;
$custom-light: #898ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#515cb2",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 178
  },
  "hsl": {
    "h": 233.196,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50955,
    "c": 0.13526,
    "h": 275.1
  },
  "luminance": 0.12618
}

Semantic roles & 50–950 ramp

primary

#515CB2

secondary

#C5C09A

accent

#C159CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #515CB2

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

Preview Lab → · Contrast checker → · Palette generator →