#4091BB#4091BB

#4091BB is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.4% C 0.101 H 234.3°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#4091BB
RGB	rgb(64, 145, 187)
HSL	hsl(200, 49%, 49%)
HSV	hsv(200, 66%, 73%)
CMYK	cmyk(65.8%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(57.00, -11.41, -29.15)
CIE-LCH	lch(57.00, 31.30, 248.61°)
OKLab	oklab(62.43% -0.0588 -0.0817)
OKLCH	oklch(62.43% 0.101 234.3)
XYZ	xyz(21.2059, 24.9264, 50.6978)
Luminance	0.2493 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4091BB #BB6A40

analogous

#40BBA8 #4091BB #4054BB

triadic

#4091BB #BB4091 #91BB40

tetradic

#4091BB #A840BB #BB6A40 #54BB40

square

#4091BB #A840BB #BB6A40 #54BB40

split-complementary

#4091BB #BB4054 #BBA840

monochromatic

#214A60 #306E8D #4091BB #6CABCD #99C5DC

Accessibility & contrast

On white

3.51

#4091BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#4091BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4091BB

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4091BB	#FFFFFF	#000000	##000000
##4091BB	1.00	3.51	5.99	5.99
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#6C83BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4091bb;
/* rgb */ color: rgb(64, 145, 187);
/* oklch */ color: oklch(62.4% 0.101 234.3);

Tailwind

colors: {
  custom: {
    50: '#82b1cf',
    500: '#4091bb',
    950: '#000000',
  },
}

SCSS

$custom: #4091bb;
$custom-light: #82b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4091bb",
  "rgb": {
    "r": 64,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 200.488,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.62434,
    "c": 0.10069,
    "h": 234.3
  },
  "luminance": 0.24929
}

Semantic roles & 50–950 ramp

primary

#4091BB

secondary

#C8A28F

accent

#7E4FD9

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4091BB

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

Preview Lab → · Contrast checker → · Palette generator →