#515EBA#515EBA

#515EBA is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.9% C 0.144 H 274.2°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#515EBA
RGB	rgb(81, 94, 186)
HSL	hsl(233, 43%, 52%)
HSV	hsv(233, 56%, 73%)
CMYK	cmyk(56.5%, 49.5%, 0%, 27.1%)
CIE-LAB	lab(43.21, 22.33, -50.29)
CIE-LCH	lch(43.21, 55.03, 293.94°)
OKLab	oklab(51.9% 0.0106 -0.1436)
OKLCH	oklch(51.9% 0.144 274.2)
XYZ	xyz(16.2561, 13.2987, 48.1551)
Luminance	0.1330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EBA #BAAD51

analogous

#5193BA #515EBA #7851BA

triadic

#515EBA #BA515E #5EBA51

tetradic

#515EBA #BA5193 #BAAD51 #51BA78

square

#515EBA #BA5193 #BAAD51 #51BA78

split-complementary

#515EBA #BA7851 #93BA51

monochromatic

#293168 #3A4593 #515EBA #7D87CB #A9AFDD

Accessibility & contrast

On white

5.74

#515EBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#515EBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EBA

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EBA	#FFFFFF	#000000	##FFFFFF
##515EBA	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306BBD

Deuteranopia (green-blind)

#2062B8

Tritanopia (blue-blind)

#147383

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515eba;
/* rgb */ color: rgb(81, 94, 186);
/* oklch */ color: oklch(51.9% 0.144 274.2);

Tailwind

colors: {
  custom: {
    50: '#8a8bcf',
    500: '#515eba',
    950: '#000000',
  },
}

SCSS

$custom: #515eba;
$custom-light: #8a8bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#515eba",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 186
  },
  "hsl": {
    "h": 232.571,
    "s": 43.21,
    "l": 52.353
  },
  "oklch": {
    "l": 0.51895,
    "c": 0.144,
    "h": 274.2
  },
  "luminance": 0.133
}

Semantic roles & 50–950 ramp

primary

#515EBA

secondary

#CAC59D

accent

#C355D3

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #515EBA

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

Preview Lab → · Contrast checker → · Palette generator →