#515DBA#515DBA

#515DBA is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.7% C 0.145 H 274.6°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#515DBA
RGB	rgb(81, 93, 186)
HSL	hsl(233, 43%, 52%)
HSV	hsv(233, 56%, 73%)
CMYK	cmyk(56.5%, 50%, 0%, 27.1%)
CIE-LAB	lab(42.95, 22.96, -50.72)
CIE-LCH	lch(42.95, 55.67, 294.36°)
OKLab	oklab(51.7% 0.0117 -0.1449)
OKLCH	oklch(51.7% 0.145 274.6)
XYZ	xyz(16.1677, 13.1221, 48.1257)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DBA #BAAE51

analogous

#5191BA #515DBA #7A51BA

triadic

#515DBA #BA515D #5DBA51

tetradic

#515DBA #BA5191 #BAAE51 #51BA7A

square

#515DBA #BA5191 #BAAE51 #51BA7A

split-complementary

#515DBA #BA7A51 #91BA51

monochromatic

#293068 #3A4593 #515DBA #7D86CB #A9AFDD

Accessibility & contrast

On white

5.79

#515DBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#515DBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DBA

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DBA	#FFFFFF	#000000	##FFFFFF
##515DBA	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E6ABD

Deuteranopia (green-blind)

#1D61B8

Tritanopia (blue-blind)

#147283

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #515dba;
/* rgb */ color: rgb(81, 93, 186);
/* oklch */ color: oklch(51.7% 0.145 274.6);

Tailwind

colors: {
  custom: {
    50: '#8a8acf',
    500: '#515dba',
    950: '#000000',
  },
}

SCSS

$custom: #515dba;
$custom-light: #8a8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#515dba",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 186
  },
  "hsl": {
    "h": 233.143,
    "s": 43.21,
    "l": 52.353
  },
  "oklch": {
    "l": 0.51696,
    "c": 0.14534,
    "h": 274.6
  },
  "luminance": 0.13123
}

Semantic roles & 50–950 ramp

primary

#515DBA

secondary

#CAC59D

accent

#C555D3

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #515DBA

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

Preview Lab → · Contrast checker → · Palette generator →