#4591CC#4591CC

#4591CC is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.4% C 0.117 H 244.6°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4591CC
RGB	rgb(69, 145, 204)
HSL	hsl(206, 57%, 54%)
HSV	hsv(206, 66%, 80%)
CMYK	cmyk(66.2%, 28.9%, 0%, 20%)
CIE-LAB	lab(57.92, -4.90, -37.32)
CIE-LCH	lch(57.92, 37.64, 262.52°)
OKLab	oklab(63.45% -0.0499 -0.1053)
OKLCH	oklch(63.45% 0.117 244.6)
XYZ	xyz(23.4746, 25.8732, 60.8719)
Luminance	0.2588 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4591CC #CC8045

analogous

#45CCC3 #4591CC #454DCC

triadic

#4591CC #CC4591 #91CC45

tetradic

#4591CC #C345CC #CC8045 #4DCC45

square

#4591CC #C345CC #CC8045 #4DCC45

split-complementary

#4591CC #CC454D #CCC345

monochromatic

#205176 #2E71A6 #4591CC #75ADD9 #A5CAE6

Accessibility & contrast

On white

3.40

#4591CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#4591CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4591CC

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4591CC	#FFFFFF	#000000	##000000
##4591CC	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7792CF

Deuteranopia (green-blind)

#6485CB

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4591cc;
/* rgb */ color: rgb(69, 145, 204);
/* oklch */ color: oklch(63.4% 0.117 244.6);

Tailwind

colors: {
  custom: {
    50: '#86b1dc',
    500: '#4591cc',
    950: '#000000',
  },
}

SCSS

$custom: #4591cc;
$custom-light: #86b1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4591cc",
  "rgb": {
    "r": 69,
    "g": 145,
    "b": 204
  },
  "hsl": {
    "h": 206.222,
    "s": 56.962,
    "l": 53.529
  },
  "oklch": {
    "l": 0.6345,
    "c": 0.11654,
    "h": 244.6
  },
  "luminance": 0.25876
}

Semantic roles & 50–950 ramp

primary

#4591CC

secondary

#D3B399

accent

#8A48E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4591CC

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

Preview Lab → · Contrast checker → · Palette generator →