#4C90BC#4C90BC

#4C90BC is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.7% C 0.096 H 239.2°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4C90BC
RGB	rgb(76, 144, 188)
HSL	hsl(204, 46%, 52%)
HSV	hsv(204, 60%, 74%)
CMYK	cmyk(59.6%, 23.4%, 0%, 26.3%)
CIE-LAB	lab(57.18, -8.33, -29.40)
CIE-LCH	lch(57.18, 30.56, 254.19°)
OKLab	oklab(62.71% -0.0491 -0.0824)
OKLCH	oklch(62.71% 0.096 239.2)
XYZ	xyz(22.0274, 25.1118, 51.2534)
Luminance	0.2511 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90BC #BC784C

analogous

#4CBCB0 #4C90BC #4C58BC

triadic

#4C90BC #BC4C90 #90BC4C

tetradic

#4C90BC #B04CBC #BC784C #58BC4C

square

#4C90BC #B04CBC #BC784C #58BC4C

split-complementary

#4C90BC #BC4C58 #BCB04C

monochromatic

#274E67 #376F94 #4C90BC #79ACCD #A5C7DD

Accessibility & contrast

On white

3.49

#4C90BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#4C90BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90BC

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90BC	#FFFFFF	#000000	##000000
##4C90BC	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6D84BB

Tritanopia (blue-blind)

#009B9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4c90bc;
/* rgb */ color: rgb(76, 144, 188);
/* oklch */ color: oklch(62.7% 0.096 239.2);

Tailwind

colors: {
  custom: {
    50: '#87b0d0',
    500: '#4c90bc',
    950: '#000000',
  },
}

SCSS

$custom: #4c90bc;
$custom-light: #87b0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90bc",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 188
  },
  "hsl": {
    "h": 203.571,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62712,
    "c": 0.09591,
    "h": 239.2
  },
  "luminance": 0.25114
}

Semantic roles & 50–950 ramp

primary

#4C90BC

secondary

#CAAD99

accent

#8653D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4C90BC

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

Preview Lab → · Contrast checker → · Palette generator →