#4291BC#4291BC

#4291BC is a light, moderate cyan. Relative luminance 0.250; OKLCH L 62.6% C 0.101 H 235.4°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4291BC
RGB	rgb(66, 145, 188)
HSL	hsl(201, 48%, 50%)
HSV	hsv(201, 65%, 74%)
CMYK	cmyk(64.9%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.11, -10.74, -29.54)
CIE-LCH	lch(57.11, 31.43, 250.01°)
OKLab	oklab(62.55% -0.0572 -0.0829)
OKLCH	oklch(62.55% 0.101 235.4)
XYZ	xyz(21.4458, 25.0377, 51.2697)
Luminance	0.2504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291BC #BC6D42

analogous

#42BCAA #4291BC #4254BC

triadic

#4291BC #BC4291 #91BC42

tetradic

#4291BC #AA42BC #BC6D42 #54BC42

square

#4291BC #AA42BC #BC6D42 #54BC42

split-complementary

#4291BC #BC4254 #BCAA42

monochromatic

#224B61 #326E8F #4291BC #6FABCC #9CC6DC

Accessibility & contrast

On white

3.50

#4291BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#4291BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291BC

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291BC	#FFFFFF	#000000	##000000
##4291BC	1.00	3.50	6.01	6.01
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6C84BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4291bc;
/* rgb */ color: rgb(66, 145, 188);
/* oklch */ color: oklch(62.6% 0.101 235.4);

Tailwind

colors: {
  custom: {
    50: '#83b1d0',
    500: '#4291bc',
    950: '#000000',
  },
}

SCSS

$custom: #4291bc;
$custom-light: #83b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4291bc",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 201.148,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.62553,
    "c": 0.10066,
    "h": 235.4
  },
  "luminance": 0.2504
}

Semantic roles & 50–950 ramp

primary

#4291BC

secondary

#C9A591

accent

#8050D8

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4291BC

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

Preview Lab → · Contrast checker → · Palette generator →