#4B90BF#4B90BF

#4B90BF is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.100 H 240.6°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#4B90BF
RGB	rgb(75, 144, 191)
HSL	hsl(204, 48%, 52%)
HSV	hsv(204, 61%, 75%)
CMYK	cmyk(60.7%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(57.27, -7.55, -30.97)
CIE-LCH	lch(57.27, 31.88, 256.29°)
OKLab	oklab(62.81% -0.0489 -0.0869)
OKLCH	oklch(62.81% 0.1 240.6)
XYZ	xyz(22.2754, 25.2018, 52.9707)
Luminance	0.2520 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B90BF #BF7A4B

analogous

#4BBFB4 #4B90BF #4B56BF

triadic

#4B90BF #BF4B90 #90BF4B

tetradic

#4B90BF #B44BBF #BF7A4B #56BF4B

square

#4B90BF #B44BBF #BF7A4B #56BF4B

split-complementary

#4B90BF #BF4B56 #BFB44B

monochromatic

#264E6A #367097 #4B90BF #78ACCF #A5C8DF

Accessibility & contrast

On white

3.48

#4B90BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#4B90BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B90BF

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B90BF	#FFFFFF	#000000	##000000
##4B90BF	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)

#7B90C1

Deuteranopia (green-blind)

#6B84BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4b90bf;
/* rgb */ color: rgb(75, 144, 191);
/* oklch */ color: oklch(62.8% 0.100 240.6);

Tailwind

colors: {
  custom: {
    50: '#87b0d2',
    500: '#4b90bf',
    950: '#000000',
  },
}

SCSS

$custom: #4b90bf;
$custom-light: #87b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4b90bf",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 204.31,
    "s": 47.541,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62812,
    "c": 0.09968,
    "h": 240.6
  },
  "luminance": 0.25204
}

Semantic roles & 50–950 ramp

primary

#4B90BF

secondary

#CCAE9A

accent

#8751D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4B90BF

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

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