#2B57C0#2B57C0

#2B57C0 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.172 H 263.9°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#2B57C0
RGB	rgb(43, 87, 192)
HSL	hsl(222, 63%, 46%)
HSV	hsv(222, 78%, 75%)
CMYK	cmyk(77.6%, 54.7%, 0%, 24.7%)
CIE-LAB	lab(39.81, 22.98, -59.38)
CIE-LCH	lch(39.81, 63.68, 291.16°)
OKLab	oklab(48.93% -0.0182 -0.1713)
OKLCH	oklch(48.93% 0.172 263.9)
XYZ	xyz(13.9155, 11.1342, 51.2747)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57C0 #C0942B

analogous

#2BA1C0 #2B57C0 #492BC0

triadic

#2B57C0 #C02B57 #57C02B

tetradic

#2B57C0 #C02BA1 #C0942B #2BC049

square

#2B57C0 #C02BA1 #C0942B #2BC049

split-complementary

#2B57C0 #C0492B #A1C02B

monochromatic

#152A5C #20408E #2B57C0 #5078D8 #829FE3

Accessibility & contrast

On white

6.51

#2B57C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2B57C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57C0

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57C0	#FFFFFF	#000000	##FFFFFF
##2B57C0	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C4

Deuteranopia (green-blind)

#0057BE

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b57c0;
/* rgb */ color: rgb(43, 87, 192);
/* oklch */ color: oklch(48.9% 0.172 263.9);

Tailwind

colors: {
  custom: {
    50: '#7b85d4',
    500: '#2b57c0',
    950: '#000000',
  },
}

SCSS

$custom: #2b57c0;
$custom-light: #7b85d4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57c0",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 192
  },
  "hsl": {
    "h": 222.282,
    "s": 63.404,
    "l": 46.078
  },
  "oklch": {
    "l": 0.48928,
    "c": 0.17221,
    "h": 263.9
  },
  "luminance": 0.11136
}

Semantic roles & 50–950 ramp

primary

#2B57C0

secondary

#CCB47B

accent

#B641E6

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2B57C0

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

Preview Lab → · Contrast checker → · Palette generator →