#515ACB#515ACB

#515ACB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.173 H 275.3°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#515ACB
RGB	rgb(81, 90, 203)
HSL	hsl(236, 54%, 56%)
HSV	hsv(236, 60%, 80%)
CMYK	cmyk(60.1%, 55.7%, 0%, 20.4%)
CIE-LAB	lab(43.32, 30.52, -59.97)
CIE-LCH	lch(43.32, 67.29, 296.97°)
OKLab	oklab(52.34% 0.0159 -0.1721)
OKLCH	oklch(52.34% 0.173 275.3)
XYZ	xyz(17.8255, 13.3721, 58.1301)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515ACB #CBC251

analogous

#5197CB #515ACB #8551CB

triadic

#515ACB #CB515A #5ACB51

tetradic

#515ACB #CB5197 #CBC251 #51CB85

square

#515ACB #CB5197 #CBC251 #51CB85

split-complementary

#515ACB #CB8551 #97CB51

monochromatic

#252C7C #333CAC #515ACB #8087D9 #AFB3E7

Accessibility & contrast

On white

5.71

#515ACB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#515ACB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515ACB

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515ACB	#FFFFFF	#000000	##FFFFFF
##515ACB	1.00	5.71	3.67	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CCF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515acb;
/* rgb */ color: rgb(81, 90, 203);
/* oklch */ color: oklch(52.3% 0.173 275.3);

Tailwind

colors: {
  custom: {
    50: '#8d88dc',
    500: '#515acb',
    950: '#000000',
  },
}

SCSS

$custom: #515acb;
$custom-light: #8d88dc;
$custom-dark: #000000;

JSON

{
  "hex": "#515acb",
  "rgb": {
    "r": 81,
    "g": 90,
    "b": 203
  },
  "hsl": {
    "h": 235.574,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52339,
    "c": 0.17286,
    "h": 275.3
  },
  "luminance": 0.13373
}

Semantic roles & 50–950 ramp

primary

#515ACB

secondary

#D5D2A3

accent

#D34ADD

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515ACB

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

Preview Lab → · Contrast checker → · Palette generator →