#515DA5#515DA5

#515DA5 is a mid, moderate blue. Relative luminance 0.123; OKLCH L 50.3% C 0.115 H 274.4°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#515DA5
RGB	rgb(81, 93, 165)
HSL	hsl(231, 34%, 48%)
HSV	hsv(231, 51%, 65%)
CMYK	cmyk(50.9%, 43.6%, 0%, 35.3%)
CIE-LAB	lab(41.68, 16.05, -40.39)
CIE-LCH	lch(41.68, 43.47, 291.67°)
OKLab	oklab(50.32% 0.0088 -0.1146)
OKLCH	oklch(50.32% 0.115 274.4)
XYZ	xyz(14.0971, 12.2938, 37.2201)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DA5 #A59951

analogous

#5187A5 #515DA5 #6F51A5

triadic

#515DA5 #A5515D #5DA551

tetradic

#515DA5 #A55187 #A59951 #51A56F

square

#515DA5 #A55187 #A59951 #51A56F

split-complementary

#515DA5 #A56F51 #87A551

monochromatic

#292F53 #3D467C #515DA5 #7781BC #A0A7D0

Accessibility & contrast

On white

6.07

#515DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#515DA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DA5

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DA5	#FFFFFF	#000000	##FFFFFF
##515DA5	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4066A8

Deuteranopia (green-blind)

#375FA3

Tritanopia (blue-blind)

#2E6C79

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #515da5;
/* rgb */ color: rgb(81, 93, 165);
/* oklch */ color: oklch(50.3% 0.115 274.4);

Tailwind

colors: {
  custom: {
    50: '#878ac0',
    500: '#515da5',
    950: '#000000',
  },
}

SCSS

$custom: #515da5;
$custom-light: #878ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#515da5",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 165
  },
  "hsl": {
    "h": 231.429,
    "s": 34.146,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50324,
    "c": 0.1149,
    "h": 274.4
  },
  "luminance": 0.12295
}

Semantic roles & 50–950 ramp

primary

#515DA5

secondary

#BDB894

accent

#BB5ECA

background

#F8F8FB

surface

#F0F0F7

border

#CBCBD0

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #515DA5

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

Preview Lab → · Contrast checker → · Palette generator →