#2B57A5#2B57A5

#2B57A5 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.135 H 260.9°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#2B57A5
RGB	rgb(43, 87, 165)
HSL	hsl(218, 59%, 41%)
HSV	hsv(218, 74%, 65%)
CMYK	cmyk(73.9%, 47.3%, 0%, 35.3%)
CIE-LAB	lab(37.92, 12.65, -46.52)
CIE-LCH	lch(37.92, 48.21, 285.22°)
OKLab	oklab(46.9% -0.0214 -0.1334)
OKLCH	oklch(46.9% 0.135 260.9)
XYZ	xyz(11.1935, 10.0454, 36.9390)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57A5 #A5792B

analogous

#2B94A5 #2B57A5 #3C2BA5

triadic

#2B57A5 #A52B57 #57A52B

tetradic

#2B57A5 #A52B94 #A5792B #2BA53C

square

#2B57A5 #A52B94 #A5792B #2BA53C

split-complementary

#2B57A5 #A53C2B #94A52B

monochromatic

#122444 #1E3D74 #2B57A5 #4073CD #7197DA

Accessibility & contrast

On white

6.98

#2B57A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2B57A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57A5

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57A5	#FFFFFF	#000000	##FFFFFF
##2B57A5	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5FA8

Deuteranopia (green-blind)

#1054A3

Tritanopia (blue-blind)

#006976

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2b57a5;
/* rgb */ color: rgb(43, 87, 165);
/* oklch */ color: oklch(46.9% 0.135 260.9);

Tailwind

colors: {
  custom: {
    50: '#7585c0',
    500: '#2b57a5',
    950: '#000000',
  },
}

SCSS

$custom: #2b57a5;
$custom-light: #7585c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57a5",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 165
  },
  "hsl": {
    "h": 218.361,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.46895,
    "c": 0.1351,
    "h": 260.9
  },
  "luminance": 0.10047
}

Semantic roles & 50–950 ramp

primary

#2B57A5

secondary

#C1A26B

accent

#AA46E2

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2B57A5

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

Preview Lab → · Contrast checker → · Palette generator →