#5B8BDB#5B8BDB

#5B8BDB is a light, vivid blue. Relative luminance 0.258; OKLCH L 63.9% C 0.132 H 260.1°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#5B8BDB
RGB	rgb(91, 139, 219)
HSL	hsl(218, 64%, 61%)
HSV	hsv(218, 58%, 86%)
CMYK	cmyk(58.4%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(57.85, 7.63, -45.78)
CIE-LCH	lch(57.85, 46.41, 279.46°)
OKLab	oklab(63.88% -0.0226 -0.1297)
OKLCH	oklch(63.88% 0.132 260.1)
XYZ	xyz(26.3287, 25.8016, 70.5968)
Luminance	0.2580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8BDB #DBAB5B

analogous

#5BCBDB #5B8BDB #6B5BDB

triadic

#5B8BDB #DB5B8B #8BDB5B

tetradic

#5B8BDB #DB5BCB #DBAB5B #5BDB6B

square

#5B8BDB #DB5BCB #DBAB5B #5BDB6B

split-complementary

#5B8BDB #DB6B5B #CBDB5B

monochromatic

#224F9A #2D68CC #5B8BDB #8DAEE6 #BFD2F1

Accessibility & contrast

On white

3.41

#5B8BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#5B8BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BDB

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8BDB	#FFFFFF	#000000	##000000
##5B8BDB	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6991DE

Deuteranopia (green-blind)

#5986D9

Tritanopia (blue-blind)

#009DA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #5b8bdb;
/* rgb */ color: rgb(91, 139, 219);
/* oklch */ color: oklch(63.9% 0.132 260.1);

Tailwind

colors: {
  custom: {
    50: '#93ace6',
    500: '#5b8bdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b8bdb;
$custom-light: #93ace6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8bdb",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 217.5,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.63883,
    "c": 0.13166,
    "h": 260.1
  },
  "luminance": 0.25804
}

Semantic roles & 50–950 ramp

primary

#5B8BDB

secondary

#E1CFB1

accent

#891ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #5B8BDB

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

Preview Lab → · Contrast checker → · Palette generator →