#538BDB#538BDB

#538BDB is a light, vivid blue. Relative luminance 0.254; OKLCH L 63.5% C 0.135 H 257.4°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#538BDB
RGB	rgb(83, 139, 219)
HSL	hsl(215, 65%, 59%)
HSV	hsv(215, 62%, 86%)
CMYK	cmyk(62.1%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(57.48, 6.11, -46.39)
CIE-LCH	lch(57.48, 46.79, 277.50°)
OKLab	oklab(63.5% -0.0293 -0.1316)
OKLCH	oklch(63.5% 0.135 257.4)
XYZ	xyz(25.5815, 25.4163, 70.5618)
Luminance	0.2542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538BDB #DBA353

analogous

#53CFDB #538BDB #5F53DB

triadic

#538BDB #DB538B #8BDB53

tetradic

#538BDB #DB53CF #DBA353 #53DB5F

square

#538BDB #DB53CF #DBA353 #53DB5F

split-complementary

#538BDB #DB5F53 #CFDB53

monochromatic

#1F4F95 #2A6BC7 #538BDB #86ADE6 #B8CFF0

Accessibility & contrast

On white

3.45

#538BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#538BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538BDB

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538BDB	#FFFFFF	#000000	##000000
##538BDB	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6891DE

Deuteranopia (green-blind)

#5684D9

Tritanopia (blue-blind)

#009DA9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #538bdb;
/* rgb */ color: rgb(83, 139, 219);
/* oklch */ color: oklch(63.5% 0.135 257.4);

Tailwind

colors: {
  custom: {
    50: '#8face6',
    500: '#538bdb',
    950: '#000000',
  },
}

SCSS

$custom: #538bdb;
$custom-light: #8face6;
$custom-dark: #000000;

JSON

{
  "hex": "#538bdb",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 215.294,
    "s": 65.385,
    "l": 59.216
  },
  "oklch": {
    "l": 0.63495,
    "c": 0.13484,
    "h": 257.4
  },
  "luminance": 0.25419
}

Semantic roles & 50–950 ramp

primary

#538BDB

secondary

#DFCAAA

accent

#A33FE8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #538BDB

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

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