#3A5BCB#3A5BCB

#3A5BCB is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.178 H 267.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3A5BCB
RGB	rgb(58, 91, 203)
HSL	hsl(226, 58%, 51%)
HSV	hsv(226, 71%, 80%)
CMYK	cmyk(71.4%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(42.30, 26.30, -61.69)
CIE-LCH	lch(42.30, 67.07, 293.09°)
OKLab	oklab(51.23% -0.0083 -0.1777)
OKLCH	oklch(51.23% 0.178 267.3)
XYZ	xyz(16.2618, 12.6918, 58.0811)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5BCB #CBAA3A

analogous

#3AA3CB #3A5BCB #613ACB

triadic

#3A5BCB #CB3A5B #5BCB3A

tetradic

#3A5BCB #CB3AA3 #CBAA3A #3ACB61

square

#3A5BCB #CB3AA3 #CBAA3A #3ACB61

split-complementary

#3A5BCB #CB613A #A3CB3A

monochromatic

#1D2F6E #2A449E #3A5BCB #6A83D8 #9BACE5

Accessibility & contrast

On white

5.93

#3A5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3A5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5BCB

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5BCB	#FFFFFF	#000000	##FFFFFF
##3A5BCB	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3a5bcb;
/* rgb */ color: rgb(58, 91, 203);
/* oklch */ color: oklch(51.2% 0.178 267.3);

Tailwind

colors: {
  custom: {
    50: '#8389dc',
    500: '#3a5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3a5bcb;
$custom-light: #8389dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5bcb",
  "rgb": {
    "r": 58,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 226.345,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51231,
    "c": 0.17789,
    "h": 267.3
  },
  "luminance": 0.12694
}

Semantic roles & 50–950 ramp

primary

#3A5BCB

secondary

#D0C290

accent

#BE46E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3A5BCB

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

Preview Lab → · Contrast checker → · Palette generator →