#4B91CB#4B91CB

#4B91CB is a light, moderate cyan. Relative luminance 0.261; OKLCH L 63.6% C 0.113 H 245.9°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#4B91CB
RGB	rgb(75, 145, 203)
HSL	hsl(207, 55%, 55%)
HSV	hsv(207, 63%, 80%)
CMYK	cmyk(63.1%, 28.6%, 0%, 20.4%)
CIE-LAB	lab(58.09, -4.19, -36.47)
CIE-LCH	lch(58.09, 36.71, 263.44°)
OKLab	oklab(63.63% -0.0461 -0.1028)
OKLCH	oklch(63.63% 0.113 245.9)
XYZ	xyz(23.8025, 26.0561, 60.2633)
Luminance	0.2606 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B91CB #CB854B

analogous

#4BCBC5 #4B91CB #4B51CB

triadic

#4B91CB #CB4B91 #91CB4B

tetradic

#4B91CB #C54BCB #CB854B #51CB4B

square

#4B91CB #C54BCB #CB854B #51CB4B

split-complementary

#4B91CB #CB4B51 #CBC54B

monochromatic

#235279 #3172A8 #4B91CB #7AAED9 #AACBE6

Accessibility & contrast

On white

3.38

#4B91CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.21

#4B91CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B91CB

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B91CB	#FFFFFF	#000000	##000000
##4B91CB	1.00	3.38	6.21	6.21
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.21	21.00	1.00	1.00
##000000	6.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7893CE

Deuteranopia (green-blind)

#6686CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4b91cb;
/* rgb */ color: rgb(75, 145, 203);
/* oklch */ color: oklch(63.6% 0.113 245.9);

Tailwind

colors: {
  custom: {
    50: '#89b1db',
    500: '#4b91cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b91cb;
$custom-light: #89b1db;
$custom-dark: #000000;

JSON

{
  "hex": "#4b91cb",
  "rgb": {
    "r": 75,
    "g": 145,
    "b": 203
  },
  "hsl": {
    "h": 207.188,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.63633,
    "c": 0.11262,
    "h": 245.9
  },
  "luminance": 0.26058
}

Semantic roles & 50–950 ramp

primary

#4B91CB

secondary

#D4B69E

accent

#8D49DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4B91CB

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

Preview Lab → · Contrast checker → · Palette generator →