#4088B2#4088B2

#4088B2 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.096 H 237.0°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#4088B2
RGB	rgb(64, 136, 178)
HSL	hsl(202, 47%, 47%)
HSV	hsv(202, 64%, 70%)
CMYK	cmyk(64%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.93, -9.33, -28.78)
CIE-LCH	lch(53.93, 30.25, 252.04°)
OKLab	oklab(59.87% -0.0524 -0.0807)
OKLCH	oklch(59.87% 0.096 237)
XYZ	xyz(18.9513, 21.9107, 45.3413)
Luminance	0.2191 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4088B2 #B26A40

analogous

#40B2A3 #4088B2 #404FB2

triadic

#4088B2 #B24088 #88B240

tetradic

#4088B2 #A340B2 #B26A40 #4FB240

square

#4088B2 #A340B2 #B26A40 #4FB240

split-complementary

#4088B2 #B2404F #B2A340

monochromatic

#204358 #306685 #4088B2 #67A4C8 #94BFD8

Accessibility & contrast

On white

3.90

#4088B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#4088B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4088B2

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4088B2	#FFFFFF	#000000	##000000
##4088B2	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7487B4

Deuteranopia (green-blind)

#657CB1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4088b2;
/* rgb */ color: rgb(64, 136, 178);
/* oklch */ color: oklch(59.9% 0.096 237.0);

Tailwind

colors: {
  custom: {
    50: '#80aac9',
    500: '#4088b2',
    950: '#000000',
  },
}

SCSS

$custom: #4088b2;
$custom-light: #80aac9;
$custom-dark: #000000;

JSON

{
  "hex": "#4088b2",
  "rgb": {
    "r": 64,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 202.105,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.59868,
    "c": 0.09623,
    "h": 237
  },
  "luminance": 0.21913
}

Semantic roles & 50–950 ramp

primary

#4088B2

secondary

#C49F8A

accent

#8251D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4088B2

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

Preview Lab → · Contrast checker → · Palette generator →