#4151AC#4151AC

#4151AC is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.3% C 0.146 H 272.1°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#4151AC
RGB	rgb(65, 81, 172)
HSL	hsl(231, 45%, 46%)
HSV	hsv(231, 62%, 67%)
CMYK	cmyk(62.2%, 52.9%, 0%, 32.5%)
CIE-LAB	lab(37.82, 22.75, -50.79)
CIE-LCH	lch(37.82, 55.65, 294.12°)
OKLab	oklab(47.26% 0.0055 -0.1456)
OKLCH	oklch(47.26% 0.146 272.1)
XYZ	xyz(12.5663, 9.9862, 40.2870)
Luminance	0.0999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151AC #AC9C41

analogous

#4187AC #4151AC #6741AC

triadic

#4151AC #AC4151 #51AC41

tetradic

#4151AC #AC4187 #AC9C41 #41AC67

square

#4151AC #AC4187 #AC9C41 #41AC67

split-complementary

#4151AC #AC6741 #87AC41

monochromatic

#1F2753 #303C80 #4151AC #6574C5 #929CD6

Accessibility & contrast

On white

7.01

#4151AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#4151AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151AC

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151AC	#FFFFFF	#000000	##FFFFFF
##4151AC	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A5EAF

Deuteranopia (green-blind)

#0054AA

Tritanopia (blue-blind)

#006676

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4151ac;
/* rgb */ color: rgb(65, 81, 172);
/* oklch */ color: oklch(47.3% 0.146 272.1);

Tailwind

colors: {
  custom: {
    50: '#8081c5',
    500: '#4151ac',
    950: '#000000',
  },
}

SCSS

$custom: #4151ac;
$custom-light: #8081c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4151ac",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 172
  },
  "hsl": {
    "h": 231.028,
    "s": 45.148,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47261,
    "c": 0.14572,
    "h": 272.1
  },
  "luminance": 0.09987
}

Semantic roles & 50–950 ramp

primary

#4151AC

secondary

#C1B888

accent

#C153D5

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4151AC

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

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