#2B57AC#2B57AC

#2B57AC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.145 H 261.9°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#2B57AC
RGB	rgb(43, 87, 172)
HSL	hsl(220, 60%, 42%)
HSV	hsv(220, 75%, 67%)
CMYK	cmyk(75%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(38.39, 15.34, -49.93)
CIE-LCH	lch(38.39, 52.23, 287.08°)
OKLab	oklab(47.4% -0.0204 -0.1434)
OKLCH	oklch(47.4% 0.145 261.9)
XYZ	xyz(11.8482, 10.3072, 40.3868)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57AC #AC802B

analogous

#2B98AC #2B57AC #402BAC

triadic

#2B57AC #AC2B57 #57AC2B

tetradic

#2B57AC #AC2B98 #AC802B #2BAC40

square

#2B57AC #AC2B98 #AC802B #2BAC40

split-complementary

#2B57AC #AC402B #98AC2B

monochromatic

#13254A #1F3E7B #2B57AC #4474D0 #7598DC

Accessibility & contrast

On white

6.86

#2B57AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2B57AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57AC

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57AC	#FFFFFF	#000000	##FFFFFF
##2B57AC	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2b57ac;
/* rgb */ color: rgb(43, 87, 172);
/* oklch */ color: oklch(47.4% 0.145 261.9);

Tailwind

colors: {
  custom: {
    50: '#7685c5',
    500: '#2b57ac',
    950: '#000000',
  },
}

SCSS

$custom: #2b57ac;
$custom-light: #7685c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57ac",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 219.535,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.474,
    "c": 0.14487,
    "h": 261.9
  },
  "luminance": 0.10309
}

Semantic roles & 50–950 ramp

primary

#2B57AC

secondary

#C4A76F

accent

#AD45E3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B57AC

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

Preview Lab → · Contrast checker → · Palette generator →