#2B57AA#2B57AA

#2B57AA is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.142 H 261.6°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#2B57AA
RGB	rgb(43, 87, 170)
HSL	hsl(219, 60%, 42%)
HSV	hsv(219, 75%, 67%)
CMYK	cmyk(74.7%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(38.25, 14.57, -48.96)
CIE-LCH	lch(38.25, 51.08, 286.57°)
OKLab	oklab(47.25% -0.0207 -0.1406)
OKLCH	oklch(47.25% 0.142 261.6)
XYZ	xyz(11.6576, 10.2310, 39.3828)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57AA #AA7E2B

analogous

#2B96AA #2B57AA #3F2BAA

triadic

#2B57AA #AA2B57 #57AA2B

tetradic

#2B57AA #AA2B96 #AA7E2B #2BAA3F

square

#2B57AA #AA2B96 #AA7E2B #2BAA3F

split-complementary

#2B57AA #AA3F2B #96AA2B

monochromatic

#122548 #1F3E79 #2B57AA #4374CF #7498DC

Accessibility & contrast

On white

6.89

#2B57AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2B57AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57AA

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57AA	#FFFFFF	#000000	##FFFFFF
##2B57AA	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2860AD

Deuteranopia (green-blind)

#0055A8

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2b57aa;
/* rgb */ color: rgb(43, 87, 170);
/* oklch */ color: oklch(47.3% 0.142 261.6);

Tailwind

colors: {
  custom: {
    50: '#7685c4',
    500: '#2b57aa',
    950: '#000000',
  },
}

SCSS

$custom: #2b57aa;
$custom-light: #7685c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57aa",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 219.213,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47254,
    "c": 0.14209,
    "h": 261.6
  },
  "luminance": 0.10232
}

Semantic roles & 50–950 ramp

primary

#2B57AA

secondary

#C3A66E

accent

#AC45E3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B57AA

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

Preview Lab → · Contrast checker → · Palette generator →