#3C5BCB#3C5BCB

#3C5BCB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.177 H 267.9°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3C5BCB
RGB	rgb(60, 91, 203)
HSL	hsl(227, 58%, 52%)
HSV	hsv(227, 70%, 80%)
CMYK	cmyk(70.4%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(42.39, 26.57, -61.54)
CIE-LCH	lch(42.39, 67.03, 293.36°)
OKLab	oklab(51.33% -0.0065 -0.1772)
OKLCH	oklch(51.33% 0.177 267.9)
XYZ	xyz(16.3803, 12.7530, 58.0866)
Luminance	0.1275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C5BCB #CBAC3C

analogous

#3CA3CB #3C5BCB #653CCB

triadic

#3C5BCB #CB3C5B #5BCB3C

tetradic

#3C5BCB #CB3CA3 #CBAC3C #3CCB65

square

#3C5BCB #CB3CA3 #CBAC3C #3CCB65

split-complementary

#3C5BCB #CB653C #A3CB3C

monochromatic

#1E2F6F #2A449F #3C5BCB #6C84D8 #9DACE5

Accessibility & contrast

On white

5.91

#3C5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3C5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C5BCB

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C5BCB	#FFFFFF	#000000	##FFFFFF
##3C5BCB	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#005EC9

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3c5bcb;
/* rgb */ color: rgb(60, 91, 203);
/* oklch */ color: oklch(51.3% 0.177 267.9);

Tailwind

colors: {
  custom: {
    50: '#8389dc',
    500: '#3c5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3c5bcb;
$custom-light: #8389dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3c5bcb",
  "rgb": {
    "r": 60,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 226.993,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51327,
    "c": 0.17733,
    "h": 267.9
  },
  "luminance": 0.12755
}

Semantic roles & 50–950 ramp

primary

#3C5BCB

secondary

#D1C392

accent

#C047E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3C5BCB

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

Preview Lab → · Contrast checker → · Palette generator →