#4288BA#4288BA

#4288BA is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.3% C 0.104 H 242.3°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4288BA
RGB	rgb(66, 136, 186)
HSL	hsl(205, 48%, 49%)
HSV	hsv(205, 65%, 73%)
CMYK	cmyk(64.5%, 26.9%, 0%, 27.1%)
CIE-LAB	lab(54.35, -6.30, -32.69)
CIE-LCH	lch(54.35, 33.29, 259.09°)
OKLab	oklab(60.34% -0.0483 -0.092)
OKLCH	oklch(60.34% 0.104 242.3)
XYZ	xyz(19.9105, 22.3097, 49.7018)
Luminance	0.2231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288BA #BA7442

analogous

#42BAB0 #4288BA #424CBA

triadic

#4288BA #BA4288 #88BA42

tetradic

#4288BA #B042BA #BA7442 #4CBA42

square

#4288BA #B042BA #BA7442 #4CBA42

split-complementary

#4288BA #BA424C #BAB042

monochromatic

#224660 #32678D #4288BA #6EA4CB #9BC1DB

Accessibility & contrast

On white

3.84

#4288BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4288BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288BA

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288BA	#FFFFFF	#000000	##000000
##4288BA	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7289BC

Deuteranopia (green-blind)

#617DB9

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4288ba;
/* rgb */ color: rgb(66, 136, 186);
/* oklch */ color: oklch(60.3% 0.104 242.3);

Tailwind

colors: {
  custom: {
    50: '#82aacf',
    500: '#4288ba',
    950: '#000000',
  },
}

SCSS

$custom: #4288ba;
$custom-light: #82aacf;
$custom-dark: #000000;

JSON

{
  "hex": "#4288ba",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 186
  },
  "hsl": {
    "h": 205,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60337,
    "c": 0.10392,
    "h": 242.3
  },
  "luminance": 0.22312
}

Semantic roles & 50–950 ramp

primary

#4288BA

secondary

#C8A790

accent

#8951D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4288BA

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

Preview Lab → · Contrast checker → · Palette generator →