#4137B8#4137B8

#4137B8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.7% C 0.194 H 278.1°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#4137B8
RGB	rgb(65, 55, 184)
HSL	hsl(245, 54%, 47%)
HSV	hsv(245, 70%, 72%)
CMYK	cmyk(64.7%, 70.1%, 0%, 27.8%)
CIE-LAB	lab(32.52, 43.07, -66.54)
CIE-LCH	lch(32.52, 79.26, 302.91°)
OKLab	oklab(43.66% 0.0275 -0.192)
OKLCH	oklch(43.66% 0.194 278.1)
XYZ	xyz(12.1951, 7.3159, 46.1076)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.30

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4137B8 #AEB837

analogous

#376EB8 #4137B8 #8237B8

triadic

#4137B8 #B84137 #37B841

tetradic

#4137B8 #B8376E #AEB837 #37B882

square

#4137B8 #B8376E #AEB837 #37B882

split-complementary

#4137B8 #B88237 #6EB837

monochromatic

#201B5A #302989 #4137B8 #665DCF #938DDD

Accessibility & contrast

On white

8.52

#4137B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#4137B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4137B8

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4137B8	#FFFFFF	#000000	##FFFFFF
##4137B8	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0047B6

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4137b8;
/* rgb */ color: rgb(65, 55, 184);
/* oklch */ color: oklch(43.7% 0.194 278.1);

Tailwind

colors: {
  custom: {
    50: '#846fce',
    500: '#4137b8',
    950: '#000000',
  },
}

SCSS

$custom: #4137b8;
$custom-light: #846fce;
$custom-dark: #000000;

JSON

{
  "hex": "#4137b8",
  "rgb": {
    "r": 65,
    "g": 55,
    "b": 184
  },
  "hsl": {
    "h": 244.651,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43658,
    "c": 0.19398,
    "h": 278.1
  },
  "luminance": 0.07317
}

Semantic roles & 50–950 ramp

primary

#4137B8

secondary

#C2C784

accent

#DD4AD2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4137B8

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

Preview Lab → · Contrast checker → · Palette generator →