#4E90BC#4E90BC

#4E90BC is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.095 H 239.8°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#4E90BC
RGB	rgb(78, 144, 188)
HSL	hsl(204, 45%, 52%)
HSV	hsv(204, 59%, 74%)
CMYK	cmyk(58.5%, 23.4%, 0%, 26.3%)
CIE-LAB	lab(57.26, -7.93, -29.27)
CIE-LCH	lch(57.26, 30.32, 254.85°)
OKLab	oklab(62.8% -0.0476 -0.082)
OKLCH	oklch(62.8% 0.095 239.8)
XYZ	xyz(22.1889, 25.1950, 51.2610)
Luminance	0.2520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E90BC #BC7A4E

analogous

#4EBCB1 #4E90BC #4E59BC

triadic

#4E90BC #BC4E90 #90BC4E

tetradic

#4E90BC #B14EBC #BC7A4E #59BC4E

square

#4E90BC #B14EBC #BC7A4E #59BC4E

split-complementary

#4E90BC #BC4E59 #BCB14E

monochromatic

#274E68 #387095 #4E90BC #7AACCD #A7C8DE

Accessibility & contrast

On white

3.48

#4E90BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#4E90BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E90BC

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E90BC	#FFFFFF	#000000	##000000
##4E90BC	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6D85BB

Tritanopia (blue-blind)

#009B9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4e90bc;
/* rgb */ color: rgb(78, 144, 188);
/* oklch */ color: oklch(62.8% 0.095 239.8);

Tailwind

colors: {
  custom: {
    50: '#88b0d0',
    500: '#4e90bc',
    950: '#000000',
  },
}

SCSS

$custom: #4e90bc;
$custom-light: #88b0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e90bc",
  "rgb": {
    "r": 78,
    "g": 144,
    "b": 188
  },
  "hsl": {
    "h": 204,
    "s": 45.082,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62798,
    "c": 0.0948,
    "h": 239.8
  },
  "luminance": 0.25197
}

Semantic roles & 50–950 ramp

primary

#4E90BC

secondary

#CBAE9B

accent

#8753D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4E90BC

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

Preview Lab → · Contrast checker → · Palette generator →