#5B90EF#5B90EF

#5B90EF is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.1% C 0.153 H 261.2°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#5B90EF
RGB	rgb(91, 144, 239)
HSL	hsl(219, 82%, 65%)
HSV	hsv(219, 62%, 94%)
CMYK	cmyk(61.9%, 39.7%, 0%, 6.3%)
CIE-LAB	lab(60.25, 11.25, -53.09)
CIE-LCH	lch(60.25, 54.27, 281.97°)
OKLab	oklab(66.08% -0.0234 -0.151)
OKLCH	oklch(66.08% 0.153 261.2)
XYZ	xyz(29.8622, 28.3999, 85.5526)
Luminance	0.2840 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B90EF #EFBA5B

analogous

#5BDAEF #5B90EF #705BEF

triadic

#5B90EF #EF5B90 #90EF5B

tetradic

#5B90EF #EF5BDA #EFBA5B #5BEF70

square

#5B90EF #EF5BDA #EFBA5B #5BEF70

split-complementary

#5B90EF #EF705B #DAEF5B

monochromatic

#1250BD #236AEA #5B90EF #93B6F4 #CBDBFA

Accessibility & contrast

On white

3.14

#5B90EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#5B90EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B90EF

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B90EF	#FFFFFF	#000000	##000000
##5B90EF	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6699F3

Deuteranopia (green-blind)

#518BED

Tritanopia (blue-blind)

#00A6B4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b90ef;
/* rgb */ color: rgb(91, 144, 239);
/* oklch */ color: oklch(66.1% 0.153 261.2);

Tailwind

colors: {
  custom: {
    50: '#96b0f5',
    500: '#5b90ef',
    950: '#000000',
  },
}

SCSS

$custom: #5b90ef;
$custom-light: #96b0f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b90ef",
  "rgb": {
    "r": 91,
    "g": 144,
    "b": 239
  },
  "hsl": {
    "h": 218.514,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.66081,
    "c": 0.15285,
    "h": 261.2
  },
  "luminance": 0.28403
}

Semantic roles & 50–950 ramp

primary

#5B90EF

secondary

#ECDABA

accent

#9107DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B90EF

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

Preview Lab → · Contrast checker → · Palette generator →