#4138BC#4138BC

#4138BC is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.2% C 0.198 H 277.6°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#4138BC
RGB	rgb(65, 56, 188)
HSL	hsl(244, 54%, 48%)
HSV	hsv(244, 70%, 74%)
CMYK	cmyk(65.4%, 70.2%, 0%, 26.3%)
CIE-LAB	lab(33.10, 43.78, -67.95)
CIE-LCH	lch(33.10, 80.83, 302.80°)
OKLab	oklab(44.19% 0.0261 -0.1961)
OKLCH	oklch(44.19% 0.198 277.6)
XYZ	xyz(12.6683, 7.5819, 48.3631)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4138BC #B3BC38

analogous

#3871BC #4138BC #8338BC

triadic

#4138BC #BC4138 #38BC41

tetradic

#4138BC #BC3871 #B3BC38 #38BC83

square

#4138BC #BC3871 #B3BC38 #38BC83

split-complementary

#4138BC #BC8338 #71BC38

monochromatic

#201C5E #312A8D #4138BC #6961D0 #9690DE

Accessibility & contrast

On white

8.34

#4138BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#4138BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4138BC

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4138BC	#FFFFFF	#000000	##FFFFFF
##4138BC	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4138bc;
/* rgb */ color: rgb(65, 56, 188);
/* oklch */ color: oklch(44.2% 0.198 277.6);

Tailwind

colors: {
  custom: {
    50: '#8570d1',
    500: '#4138bc',
    950: '#000000',
  },
}

SCSS

$custom: #4138bc;
$custom-light: #8570d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4138bc",
  "rgb": {
    "r": 65,
    "g": 56,
    "b": 188
  },
  "hsl": {
    "h": 244.091,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44188,
    "c": 0.19788,
    "h": 277.6
  },
  "luminance": 0.07583
}

Semantic roles & 50–950 ramp

primary

#4138BC

secondary

#C4C987

accent

#DD4AD3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #4138BC

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

Preview Lab → · Contrast checker → · Palette generator →