#2B3CB4#2B3CB4

#2B3CB4 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.189 H 269.8°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B3CB4
RGB	rgb(43, 60, 180)
HSL	hsl(233, 61%, 44%)
HSV	hsv(233, 76%, 71%)
CMYK	cmyk(76.1%, 66.7%, 0%, 29.4%)
CIE-LAB	lab(31.90, 36.08, -65.24)
CIE-LCH	lch(31.90, 74.55, 298.95°)
OKLab	oklab(42.74% -0.0007 -0.1887)
OKLCH	oklch(42.74% 0.189 269.8)
XYZ	xyz(10.8475, 7.0394, 43.9582)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.81

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3CB4 #B4A32B

analogous

#2B80B4 #2B3CB4 #5E2BB4

triadic

#2B3CB4 #B42B3C #3CB42B

tetradic

#2B3CB4 #B42B80 #B4A32B #2BB45E

square

#2B3CB4 #B42B80 #B4A32B #2BB45E

split-complementary

#2B3CB4 #B45E2B #80B42B

monochromatic

#131B51 #1F2C83 #2B3CB4 #495AD3 #7A87DF

Accessibility & contrast

On white

8.72

#2B3CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2B3CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3CB4

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3CB4	#FFFFFF	#000000	##FFFFFF
##2B3CB4	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3cb4;
/* rgb */ color: rgb(43, 60, 180);
/* oklch */ color: oklch(42.7% 0.189 269.8);

Tailwind

colors: {
  custom: {
    50: '#7a72cc',
    500: '#2b3cb4',
    950: '#000000',
  },
}

SCSS

$custom: #2b3cb4;
$custom-light: #7a72cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3cb4",
  "rgb": {
    "r": 43,
    "g": 60,
    "b": 180
  },
  "hsl": {
    "h": 232.555,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42737,
    "c": 0.18875,
    "h": 269.8
  },
  "luminance": 0.07041
}

Semantic roles & 50–950 ramp

primary

#2B3CB4

secondary

#C7BD73

accent

#D143E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2B3CB4

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

Preview Lab → · Contrast checker → · Palette generator →