#5B90EE#5B90EE

#5B90EE is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.0% C 0.152 H 261.0°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#5B90EE
RGB	rgb(91, 144, 238)
HSL	hsl(218, 81%, 65%)
HSV	hsv(218, 62%, 93%)
CMYK	cmyk(61.8%, 39.5%, 0%, 6.7%)
CIE-LAB	lab(60.20, 10.92, -52.62)
CIE-LCH	lch(60.20, 53.74, 281.72°)
OKLab	oklab(66.02% -0.0236 -0.1497)
OKLCH	oklch(66.02% 0.152 261)
XYZ	xyz(29.7148, 28.3410, 84.7768)
Luminance	0.2834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B90EE #EEB95B

analogous

#5BDAEE #5B90EE #705BEE

triadic

#5B90EE #EE5B90 #90EE5B

tetradic

#5B90EE #EE5BDA #EEB95B #5BEE70

square

#5B90EE #EE5BDA #EEB95B #5BEE70

split-complementary

#5B90EE #EE705B #DAEE5B

monochromatic

#1350BB #246AE8 #5B90EE #92B6F4 #CADBF9

Accessibility & contrast

On white

3.15

#5B90EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#5B90EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B90EE

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B90EE	#FFFFFF	#000000	##000000
##5B90EE	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6798F2

Deuteranopia (green-blind)

#528BEC

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b90ee;
/* rgb */ color: rgb(91, 144, 238);
/* oklch */ color: oklch(66.0% 0.152 261.0);

Tailwind

colors: {
  custom: {
    50: '#96b0f4',
    500: '#5b90ee',
    950: '#000000',
  },
}

SCSS

$custom: #5b90ee;
$custom-light: #96b0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b90ee",
  "rgb": {
    "r": 91,
    "g": 144,
    "b": 238
  },
  "hsl": {
    "h": 218.367,
    "s": 81.215,
    "l": 64.51
  },
  "oklch": {
    "l": 0.66023,
    "c": 0.15153,
    "h": 261
  },
  "luminance": 0.28344
}

Semantic roles & 50–950 ramp

primary

#5B90EE

secondary

#ECD9B9

accent

#9108DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5B90EE

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

Preview Lab → · Contrast checker → · Palette generator →