#288EBA#288EBA

#288EBA is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 61.0% C 0.111 H 231.9°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#288EBA
RGB	rgb(40, 142, 186)
HSL	hsl(198, 65%, 44%)
HSV	hsv(198, 78%, 73%)
CMYK	cmyk(78.5%, 23.7%, 0%, 27.1%)
CIE-LAB	lab(55.42, -13.42, -31.09)
CIE-LCH	lch(55.42, 33.86, 246.65°)
OKLab	oklab(60.98% -0.0687 -0.0875)
OKLCH	oklch(60.98% 0.111 231.9)
XYZ	xyz(19.4074, 23.3399, 49.9271)
Luminance	0.2334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EBA #BA5428

analogous

#28BA9D #288EBA #2845BA

triadic

#288EBA #BA288E #8EBA28

tetradic

#288EBA #9D28BA #BA5428 #45BA28

square

#288EBA #9D28BA #BA5428 #45BA28

split-complementary

#288EBA #BA2845 #BA9D28

monochromatic

#124155 #1D6888 #288EBA #48ACD8 #7AC3E2

Accessibility & contrast

On white

3.70

#288EBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#288EBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EBA

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EBA	#FFFFFF	#000000	##000000
##288EBA	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788CBC

Deuteranopia (green-blind)

#647FB9

Tritanopia (blue-blind)

#009A9D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #288eba;
/* rgb */ color: rgb(40, 142, 186);
/* oklch */ color: oklch(61.0% 0.111 231.9);

Tailwind

colors: {
  custom: {
    50: '#79afcf',
    500: '#288eba',
    950: '#000000',
  },
}

SCSS

$custom: #288eba;
$custom-light: #79afcf;
$custom-dark: #000000;

JSON

{
  "hex": "#288eba",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 186
  },
  "hsl": {
    "h": 198.082,
    "s": 64.602,
    "l": 44.314
  },
  "oklch": {
    "l": 0.60978,
    "c": 0.11127,
    "h": 231.9
  },
  "luminance": 0.23342
}

Semantic roles & 50–950 ramp

primary

#288EBA

secondary

#CA8E73

accent

#7340E8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #288EBA

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

Preview Lab → · Contrast checker → · Palette generator →