#515CDB#515CDB

#515CDB is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.9% C 0.192 H 274.3°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#515CDB
RGB	rgb(81, 92, 219)
HSL	hsl(235, 66%, 59%)
HSV	hsv(235, 63%, 86%)
CMYK	cmyk(63%, 58%, 0%, 14.1%)
CIE-LAB	lab(44.96, 34.63, -66.47)
CIE-LCH	lch(44.96, 74.95, 297.52°)
OKLab	oklab(53.93% 0.0142 -0.1912)
OKLCH	oklch(53.93% 0.192 274.3)
XYZ	xyz(20.0024, 14.5164, 68.7520)
Luminance	0.1452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515CDB #DBD051

analogous

#51A1DB #515CDB #8B51DB

triadic

#515CDB #DB515C #5CDB51

tetradic

#515CDB #DB51A1 #DBD051 #51DB8B

square

#515CDB #DB51A1 #DBD051 #51DB8B

split-complementary

#515CDB #DB8B51 #A1DB51

monochromatic

#1E2893 #2935C6 #515CDB #848CE5 #B6BBF0

Accessibility & contrast

On white

5.38

#515CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#515CDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515CDB

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515CDB	#FFFFFF	#000000	##FFFFFF
##515CDB	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DF

Deuteranopia (green-blind)

#0064D8

Tritanopia (blue-blind)

#007B93

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515cdb;
/* rgb */ color: rgb(81, 92, 219);
/* oklch */ color: oklch(53.9% 0.192 274.3);

Tailwind

colors: {
  custom: {
    50: '#908ae7',
    500: '#515cdb',
    950: '#000000',
  },
}

SCSS

$custom: #515cdb;
$custom-light: #908ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#515cdb",
  "rgb": {
    "r": 81,
    "g": 92,
    "b": 219
  },
  "hsl": {
    "h": 235.217,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53928,
    "c": 0.19175,
    "h": 274.3
  },
  "luminance": 0.14518
}

Semantic roles & 50–950 ramp

primary

#515CDB

secondary

#DFDBA9

accent

#DB3FE9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515CDB

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

Preview Lab → · Contrast checker → · Palette generator →