#3B4ECF#3B4ECF

#3B4ECF is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.2% C 0.199 H 270.7°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3B4ECF
RGB	rgb(59, 78, 207)
HSL	hsl(232, 61%, 52%)
HSV	hsv(232, 71%, 81%)
CMYK	cmyk(71.5%, 62.3%, 0%, 18.8%)
CIE-LAB	lab(39.38, 36.13, -68.75)
CIE-LCH	lch(39.38, 77.66, 297.73°)
OKLab	oklab(49.17% 0.0023 -0.1985)
OKLCH	oklch(49.17% 0.199 270.7)
XYZ	xyz(15.7867, 10.8820, 60.2878)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4ECF #CFBC3B

analogous

#3B98CF #3B4ECF #723BCF

triadic

#3B4ECF #CF3B4E #4ECF3B

tetradic

#3B4ECF #CF3B98 #CFBC3B #3BCF72

square

#3B4ECF #CF3B98 #CFBC3B #3BCF72

split-complementary

#3B4ECF #CF723B #98CF3B

monochromatic

#1C2773 #2838A5 #3B4ECF #6C7ADB #9DA7E7

Accessibility & contrast

On white

6.61

#3B4ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3B4ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B4ECF

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4ECF	#FFFFFF	#000000	##FFFFFF
##3B4ECF	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D3

Deuteranopia (green-blind)

#0056CD

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3b4ecf;
/* rgb */ color: rgb(59, 78, 207);
/* oklch */ color: oklch(49.2% 0.199 270.7);

Tailwind

colors: {
  custom: {
    50: '#857fdf',
    500: '#3b4ecf',
    950: '#000000',
  },
}

SCSS

$custom: #3b4ecf;
$custom-light: #857fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4ecf",
  "rgb": {
    "r": 59,
    "g": 78,
    "b": 207
  },
  "hsl": {
    "h": 232.297,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49171,
    "c": 0.19856,
    "h": 270.7
  },
  "luminance": 0.10884
}

Semantic roles & 50–950 ramp

primary

#3B4ECF

secondary

#D3CB93

accent

#CF44E4

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #3B4ECF

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

Preview Lab → · Contrast checker → · Palette generator →