#4F91BC#4F91BC

#4F91BC is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.1% C 0.094 H 239.2°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#4F91BC
RGB	rgb(79, 145, 188)
HSL	hsl(204, 45%, 52%)
HSV	hsv(204, 58%, 74%)
CMYK	cmyk(58%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.60, -8.29, -28.75)
CIE-LCH	lch(57.60, 29.92, 253.92°)
OKLab	oklab(63.08% -0.048 -0.0804)
OKLCH	oklch(63.08% 0.094 239.2)
XYZ	xyz(22.4236, 25.5419, 51.3156)
Luminance	0.2554 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F91BC #BC7A4F

analogous

#4FBCB1 #4F91BC #4F5ABC

triadic

#4F91BC #BC4F91 #91BC4F

tetradic

#4F91BC #B14FBC #BC7A4F #5ABC4F

square

#4F91BC #B14FBC #BC7A4F #5ABC4F

split-complementary

#4F91BC #BC4F5A #BCB14F

monochromatic

#284F69 #397195 #4F91BC #7BADCD #A8C8DE

Accessibility & contrast

On white

3.44

#4F91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#4F91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F91BC

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F91BC	#FFFFFF	#000000	##000000
##4F91BC	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E91BE

Deuteranopia (green-blind)

#6F85BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4f91bc;
/* rgb */ color: rgb(79, 145, 188);
/* oklch */ color: oklch(63.1% 0.094 239.2);

Tailwind

colors: {
  custom: {
    50: '#89b1d0',
    500: '#4f91bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f91bc;
$custom-light: #89b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f91bc",
  "rgb": {
    "r": 79,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 203.67,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.63075,
    "c": 0.09368,
    "h": 239.2
  },
  "luminance": 0.25544
}

Semantic roles & 50–950 ramp

primary

#4F91BC

secondary

#CBAE9C

accent

#8653D5

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4F91BC

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

Preview Lab → · Contrast checker → · Palette generator →