#3B4EBB#3B4EBB

#3B4EBB is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.172 H 270.8°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#3B4EBB
RGB	rgb(59, 78, 187)
HSL	hsl(231, 52%, 48%)
HSV	hsv(231, 68%, 73%)
CMYK	cmyk(68.4%, 58.3%, 0%, 26.7%)
CIE-LAB	lab(37.78, 29.03, -59.72)
CIE-LCH	lch(37.78, 66.40, 295.93°)
OKLab	oklab(47.49% 0.0025 -0.1721)
OKLCH	oklch(47.49% 0.172 270.8)
XYZ	xyz(13.4946, 9.9652, 48.2164)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4EBB #BBA83B

analogous

#3B8EBB #3B4EBB #683BBB

triadic

#3B4EBB #BB3B4E #4EBB3B

tetradic

#3B4EBB #BB3B8E #BBA83B #3BBB68

square

#3B4EBB #BB3B8E #BBA83B #3BBB68

split-complementary

#3B4EBB #BB683B #8EBB3B

monochromatic

#1E275E #2C3B8C #3B4EBB #6575CE #939EDD

Accessibility & contrast

On white

7.02

#3B4EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3B4EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4EBB

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4EBB	#FFFFFF	#000000	##FFFFFF
##3B4EBB	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBF

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3b4ebb;
/* rgb */ color: rgb(59, 78, 187);
/* oklch */ color: oklch(47.5% 0.172 270.8);

Tailwind

colors: {
  custom: {
    50: '#807fd0',
    500: '#3b4ebb',
    950: '#000000',
  },
}

SCSS

$custom: #3b4ebb;
$custom-light: #807fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4ebb",
  "rgb": {
    "r": 59,
    "g": 78,
    "b": 187
  },
  "hsl": {
    "h": 231.094,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47486,
    "c": 0.17208,
    "h": 270.8
  },
  "luminance": 0.09966
}

Semantic roles & 50–950 ramp

primary

#3B4EBB

secondary

#C8BF8A

accent

#C64CDB

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #3B4EBB

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

Preview Lab → · Contrast checker → · Palette generator →