#4E90B8#4E90B8

#4E90B8 is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.6% C 0.091 H 237.2°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4E90B8
RGB	rgb(78, 144, 184)
HSL	hsl(203, 43%, 51%)
HSV	hsv(203, 58%, 72%)
CMYK	cmyk(57.6%, 21.7%, 0%, 27.8%)
CIE-LAB	lab(57.10, -9.19, -27.25)
CIE-LCH	lch(57.10, 28.76, 251.36°)
OKLab	oklab(62.61% -0.049 -0.0762)
OKLCH	oklch(62.61% 0.091 237.2)
XYZ	xyz(21.7636, 25.0249, 49.0215)
Luminance	0.2503 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E90B8 #B8764E

analogous

#4EB8AB #4E90B8 #4E5BB8

triadic

#4E90B8 #B84E90 #90B84E

tetradic

#4E90B8 #AB4EB8 #B8764E #5BB84E

square

#4E90B8 #AB4EB8 #B8764E #5BB84E

split-complementary

#4E90B8 #B84E5B #B8AB4E

monochromatic

#284D64 #396F8F #4E90B8 #7AABCA #A5C7DB

Accessibility & contrast

On white

3.50

#4E90B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#4E90B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E90B8

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E90B8	#FFFFFF	#000000	##000000
##4E90B8	1.00	3.50	6.01	6.01
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8FBA

Deuteranopia (green-blind)

#6F84B7

Tritanopia (blue-blind)

#009A9D

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4e90b8;
/* rgb */ color: rgb(78, 144, 184);
/* oklch */ color: oklch(62.6% 0.091 237.2);

Tailwind

colors: {
  custom: {
    50: '#88b0cd',
    500: '#4e90b8',
    950: '#000000',
  },
}

SCSS

$custom: #4e90b8;
$custom-light: #88b0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4e90b8",
  "rgb": {
    "r": 78,
    "g": 144,
    "b": 184
  },
  "hsl": {
    "h": 202.642,
    "s": 42.742,
    "l": 51.373
  },
  "oklch": {
    "l": 0.62613,
    "c": 0.0906,
    "h": 237.2
  },
  "luminance": 0.25027
}

Semantic roles & 50–950 ramp

primary

#4E90B8

secondary

#C8AB9A

accent

#8555D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #4E90B8

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

Preview Lab → · Contrast checker → · Palette generator →