#515EBB#515EBB

#515EBB is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.0% C 0.145 H 274.2°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#515EBB
RGB	rgb(81, 94, 187)
HSL	hsl(233, 44%, 53%)
HSV	hsv(233, 57%, 73%)
CMYK	cmyk(56.7%, 49.7%, 0%, 26.7%)
CIE-LAB	lab(43.27, 22.66, -50.77)
CIE-LCH	lch(43.27, 55.60, 294.05°)
OKLab	oklab(51.96% 0.0107 -0.145)
OKLCH	oklch(51.96% 0.145 274.2)
XYZ	xyz(16.3628, 13.3414, 48.7170)
Luminance	0.1334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515EBB #BBAE51

analogous

#5193BB #515EBB #7951BB

triadic

#515EBB #BB515E #5EBB51

tetradic

#515EBB #BB5193 #BBAE51 #51BB79

square

#515EBB #BB5193 #BBAE51 #51BB79

split-complementary

#515EBB #BB7951 #93BB51

monochromatic

#293169 #3A4595 #515EBB #7D87CC #A9AFDD

Accessibility & contrast

On white

5.72

#515EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#515EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515EBB

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515EBB	#FFFFFF	#000000	##FFFFFF
##515EBB	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6BBE

Deuteranopia (green-blind)

#1E62B9

Tritanopia (blue-blind)

#127383

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #515ebb;
/* rgb */ color: rgb(81, 94, 187);
/* oklch */ color: oklch(52.0% 0.145 274.2);

Tailwind

colors: {
  custom: {
    50: '#8a8bd0',
    500: '#515ebb',
    950: '#000000',
  },
}

SCSS

$custom: #515ebb;
$custom-light: #8a8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#515ebb",
  "rgb": {
    "r": 81,
    "g": 94,
    "b": 187
  },
  "hsl": {
    "h": 232.642,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51963,
    "c": 0.14542,
    "h": 274.2
  },
  "luminance": 0.13343
}

Semantic roles & 50–950 ramp

primary

#515EBB

secondary

#CBC59D

accent

#C454D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0C14

muted

#7D7D82

Preview Lab

Preview with #515EBB

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

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