#4B81CB#4B81CB

#4B81CB is a mid, vivid cyan. Relative luminance 0.215; OKLCH L 60.0% C 0.127 H 256.7°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4B81CB
RGB	rgb(75, 129, 203)
HSL	hsl(215, 55%, 55%)
HSV	hsv(215, 63%, 80%)
CMYK	cmyk(63.1%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(53.50, 5.22, -43.69)
CIE-LCH	lch(53.50, 44.00, 276.81°)
OKLab	oklab(60.03% -0.0293 -0.124)
OKLCH	oklch(60.03% 0.127 256.7)
XYZ	xyz(21.5275, 21.5061, 59.5049)
Luminance	0.2151 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81CB #CB954B

analogous

#4BC1CB #4B81CB #554BCB

triadic

#4B81CB #CB4B81 #81CB4B

tetradic

#4B81CB #CB4BC1 #CB954B #4BCB55

square

#4B81CB #CB4BC1 #CB954B #4BCB55

split-complementary

#4B81CB #CB554B #C1CB4B

monochromatic

#234779 #3163A8 #4B81CB #7AA2D9 #AAC3E6

Accessibility & contrast

On white

3.96

#4B81CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#4B81CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81CB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81CB	#FFFFFF	#000000	##000000
##4B81CB	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6186CE

Deuteranopia (green-blind)

#4F7AC9

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4b81cb;
/* rgb */ color: rgb(75, 129, 203);
/* oklch */ color: oklch(60.0% 0.127 256.7);

Tailwind

colors: {
  custom: {
    50: '#89a5db',
    500: '#4b81cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b81cb;
$custom-light: #89a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81cb",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 214.688,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.60033,
    "c": 0.12738,
    "h": 256.7
  },
  "luminance": 0.21508
}

Semantic roles & 50–950 ramp

primary

#4B81CB

secondary

#D4BD9E

accent

#A049DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D0F15

muted

#7D7F83

Preview Lab

Preview with #4B81CB

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

Preview Lab → · Contrast checker → · Palette generator →