#4055D8#4055D8

#4055D8 is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.5% C 0.201 H 270.6°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4055D8
RGB	rgb(64, 85, 216)
HSL	hsl(232, 66%, 55%)
HSV	hsv(232, 70%, 85%)
CMYK	cmyk(70.4%, 60.6%, 0%, 15.3%)
CIE-LAB	lab(42.07, 35.53, -69.52)
CIE-LCH	lch(42.07, 78.07, 297.07°)
OKLab	oklab(51.45% 0.0021 -0.2006)
OKLCH	oklch(51.45% 0.201 270.6)
XYZ	xyz(17.7533, 12.5431, 66.4379)
Luminance	0.1255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055D8 #D8C340

analogous

#40A1D8 #4055D8 #7740D8

triadic

#4055D8 #D84055 #55D840

tetradic

#4055D8 #D840A1 #D8C340 #40D877

square

#4055D8 #D840A1 #D8C340 #40D877

split-complementary

#4055D8 #D87740 #A1D840

monochromatic

#1B2983 #2539B6 #4055D8 #7382E2 #A6AFED

Accessibility & contrast

On white

5.98

#4055D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4055D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055D8

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055D8	#FFFFFF	#000000	##FFFFFF
##4055D8	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADC

Deuteranopia (green-blind)

#005CD5

Tritanopia (blue-blind)

#00768E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4055d8;
/* rgb */ color: rgb(64, 85, 216);
/* oklch */ color: oklch(51.5% 0.201 270.6);

Tailwind

colors: {
  custom: {
    50: '#8884e5',
    500: '#4055d8',
    950: '#000000',
  },
}

SCSS

$custom: #4055d8;
$custom-light: #8884e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4055d8",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 216
  },
  "hsl": {
    "h": 231.711,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.51451,
    "c": 0.20066,
    "h": 270.6
  },
  "luminance": 0.12545
}

Semantic roles & 50–950 ramp

primary

#4055D8

secondary

#DAD19A

accent

#D23FE9

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4055D8

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

Preview Lab → · Contrast checker → · Palette generator →