#3438B4#3438B4

#3438B4 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.191 H 273.4°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#3438B4
RGB	rgb(52, 56, 180)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 71%)
CMYK	cmyk(71.1%, 68.9%, 0%, 29.4%)
CIE-LAB	lab(31.47, 39.54, -65.92)
CIE-LCH	lch(31.47, 76.87, 300.96°)
OKLab	oklab(42.56% 0.0113 -0.1906)
OKLCH	oklch(42.56% 0.191 273.4)
XYZ	xyz(11.0658, 6.8526, 43.9107)
Luminance	0.0685 (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

#3438B4 #B4B034

analogous

#3478B4 #3438B4 #7034B4

triadic

#3438B4 #B43438 #38B434

tetradic

#3438B4 #B43478 #B4B034 #34B470

square

#3438B4 #B43478 #B4B034 #34B470

split-complementary

#3438B4 #B47034 #78B434

monochromatic

#191A55 #262985 #3438B4 #575BCE #8689DC

Accessibility & contrast

On white

8.86

#3438B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3438B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3438B4

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3438B4	#FFFFFF	#000000	##FFFFFF
##3438B4	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B8

Deuteranopia (green-blind)

#0044B2

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3438b4;
/* rgb */ color: rgb(52, 56, 180);
/* oklch */ color: oklch(42.6% 0.191 273.4);

Tailwind

colors: {
  custom: {
    50: '#7e6fcc',
    500: '#3438b4',
    950: '#000000',
  },
}

SCSS

$custom: #3438b4;
$custom-light: #7e6fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3438b4",
  "rgb": {
    "r": 52,
    "g": 56,
    "b": 180
  },
  "hsl": {
    "h": 238.125,
    "s": 55.172,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4256,
    "c": 0.19089,
    "h": 273.4
  },
  "luminance": 0.06854
}

Semantic roles & 50–950 ramp

primary

#3438B4

secondary

#C6C47E

accent

#DA49DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3438B4

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

Preview Lab → · Contrast checker → · Palette generator →