#4055D9#4055D9

#4055D9 is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.5% C 0.202 H 270.6°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#4055D9
RGB	rgb(64, 85, 217)
HSL	hsl(232, 67%, 55%)
HSV	hsv(232, 71%, 85%)
CMYK	cmyk(70.5%, 60.8%, 0%, 14.9%)
CIE-LAB	lab(42.15, 35.88, -69.96)
CIE-LCH	lch(42.15, 78.62, 297.15°)
OKLab	oklab(51.54% 0.0021 -0.2019)
OKLCH	oklch(51.54% 0.202 270.6)
XYZ	xyz(17.8830, 12.5949, 67.1208)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055D9 #D9C440

analogous

#40A1D9 #4055D9 #7840D9

triadic

#4055D9 #D94055 #55D940

tetradic

#4055D9 #D940A1 #D9C440 #40D978

square

#4055D9 #D940A1 #D9C440 #40D978

split-complementary

#4055D9 #D97840 #A1D940

monochromatic

#1A2984 #2439B7 #4055D9 #7382E3 #A6B0ED

Accessibility & contrast

On white

5.97

#4055D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4055D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055D9

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055D9	#FFFFFF	#000000	##FFFFFF
##4055D9	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BDD

Deuteranopia (green-blind)

#005DD6

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4055d9;
/* rgb */ color: rgb(64, 85, 217);
/* oklch */ color: oklch(51.5% 0.202 270.6);

Tailwind

colors: {
  custom: {
    50: '#8884e6',
    500: '#4055d9',
    950: '#000000',
  },
}

SCSS

$custom: #4055d9;
$custom-light: #8884e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4055d9",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 217
  },
  "hsl": {
    "h": 231.765,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51535,
    "c": 0.20196,
    "h": 270.6
  },
  "luminance": 0.12597
}

Semantic roles & 50–950 ramp

primary

#4055D9

secondary

#DAD29A

accent

#D23EEA

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4055D9

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

Preview Lab → · Contrast checker → · Palette generator →