#4E90BB#4E90BB

#4E90BB is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.094 H 239.2°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4E90BB
RGB	rgb(78, 144, 187)
HSL	hsl(204, 44%, 52%)
HSV	hsv(204, 58%, 73%)
CMYK	cmyk(58.3%, 23%, 0%, 26.7%)
CIE-LAB	lab(57.22, -8.24, -28.77)
CIE-LCH	lch(57.22, 29.92, 254.01°)
OKLab	oklab(62.75% -0.048 -0.0805)
OKLCH	oklch(62.75% 0.094 239.2)
XYZ	xyz(22.0814, 25.1521, 50.6952)
Luminance	0.2515 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E90BB #BB794E

analogous

#4EBBB0 #4E90BB #4E5ABB

triadic

#4E90BB #BB4E90 #90BB4E

tetradic

#4E90BB #B04EBB #BB794E #5ABB4E

square

#4E90BB #B04EBB #BB794E #5ABB4E

split-complementary

#4E90BB #BB4E5A #BBB04E

monochromatic

#284E67 #396F93 #4E90BB #7AACCC #A6C7DD

Accessibility & contrast

On white

3.48

#4E90BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#4E90BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E90BB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E90BB	#FFFFFF	#000000	##000000
##4E90BB	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#6E84BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4e90bb;
/* rgb */ color: rgb(78, 144, 187);
/* oklch */ color: oklch(62.8% 0.094 239.2);

Tailwind

colors: {
  custom: {
    50: '#88b0cf',
    500: '#4e90bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e90bb;
$custom-light: #88b0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4e90bb",
  "rgb": {
    "r": 78,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 203.67,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.62752,
    "c": 0.09374,
    "h": 239.2
  },
  "luminance": 0.25154
}

Semantic roles & 50–950 ramp

primary

#4E90BB

secondary

#CAAD9B

accent

#8654D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4E90BB

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

Preview Lab → · Contrast checker → · Palette generator →