#2B57C3#2B57C3

#2B57C3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.176 H 264.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#2B57C3
RGB	rgb(43, 87, 195)
HSL	hsl(223, 64%, 47%)
HSV	hsv(223, 78%, 76%)
CMYK	cmyk(77.9%, 55.4%, 0%, 23.5%)
CIE-LAB	lab(40.03, 24.12, -60.77)
CIE-LCH	lch(40.03, 65.38, 291.65°)
OKLab	oklab(49.17% -0.0179 -0.1753)
OKLCH	oklch(49.17% 0.176 264.2)
XYZ	xyz(14.2513, 11.2685, 53.0431)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57C3 #C3972B

analogous

#2BA3C3 #2B57C3 #4B2BC3

triadic

#2B57C3 #C32B57 #57C32B

tetradic

#2B57C3 #C32BA3 #C3972B #2BC34B

square

#2B57C3 #C32BA3 #C3972B #2BC34B

split-complementary

#2B57C3 #C34B2B #A3C32B

monochromatic

#152A5F #204191 #2B57C3 #5279D9 #84A0E4

Accessibility & contrast

On white

6.45

#2B57C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#2B57C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57C3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57C3	#FFFFFF	#000000	##FFFFFF
##2B57C3	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C7

Deuteranopia (green-blind)

#0058C1

Tritanopia (blue-blind)

#007284

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b57c3;
/* rgb */ color: rgb(43, 87, 195);
/* oklch */ color: oklch(49.2% 0.176 264.2);

Tailwind

colors: {
  custom: {
    50: '#7c85d6',
    500: '#2b57c3',
    950: '#000000',
  },
}

SCSS

$custom: #2b57c3;
$custom-light: #7c85d6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57c3",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 195
  },
  "hsl": {
    "h": 222.632,
    "s": 63.866,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49167,
    "c": 0.17624,
    "h": 264.2
  },
  "luminance": 0.1127
}

Semantic roles & 50–950 ramp

primary

#2B57C3

secondary

#CDB67D

accent

#B741E7

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2B57C3

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

Preview Lab → · Contrast checker → · Palette generator →