#507BBB#507BBB

#507BBB is a mid, moderate blue. Relative luminance 0.195; OKLCH L 58.1% C 0.110 H 258.1°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#507BBB
RGB	rgb(80, 123, 187)
HSL	hsl(216, 44%, 52%)
HSV	hsv(216, 57%, 73%)
CMYK	cmyk(57.2%, 34.2%, 0%, 26.7%)
CIE-LAB	lab(51.22, 4.44, -38.14)
CIE-LCH	lch(51.22, 38.40, 276.64°)
OKLab	oklab(58.06% -0.0226 -0.1077)
OKLCH	oklch(58.06% 0.11 258.1)
XYZ	xyz(19.3577, 19.4576, 49.7397)
Luminance	0.1946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#507BBB #BB9050

analogous

#50B0BB #507BBB #5B50BB

triadic

#507BBB #BB507B #7BBB50

tetradic

#507BBB #BB50B0 #BB9050 #50BB5B

square

#507BBB #BB50B0 #BB9050 #50BB5B

split-complementary

#507BBB #BB5B50 #B0BB50

monochromatic

#284268 #3A5E94 #507BBB #7C9CCC #A8BDDD

Accessibility & contrast

On white

4.29

#507BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#507BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #507BBB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##507BBB	#FFFFFF	#000000	##000000
##507BBB	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6180BE

Deuteranopia (green-blind)

#5375BA

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #507bbb;
/* rgb */ color: rgb(80, 123, 187);
/* oklch */ color: oklch(58.1% 0.110 258.1);

Tailwind

colors: {
  custom: {
    50: '#89a0d0',
    500: '#507bbb',
    950: '#000000',
  },
}

SCSS

$custom: #507bbb;
$custom-light: #89a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#507bbb",
  "rgb": {
    "r": 80,
    "g": 123,
    "b": 187
  },
  "hsl": {
    "h": 215.888,
    "s": 44.033,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58055,
    "c": 0.11009,
    "h": 258.1
  },
  "luminance": 0.19459
}

Semantic roles & 50–950 ramp

primary

#507BBB

secondary

#CBB89C

accent

#A054D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #507BBB

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

Preview Lab → · Contrast checker → · Palette generator →