#2257BB#2257BB

#2257BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.168 H 261.6°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#2257BB
RGB	rgb(34, 87, 187)
HSL	hsl(219, 69%, 43%)
HSV	hsv(219, 82%, 73%)
CMYK	cmyk(81.8%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(39.14, 20.15, -57.55)
CIE-LCH	lch(39.14, 60.98, 289.30°)
OKLab	oklab(48.23% -0.0246 -0.166)
OKLCH	oklch(48.23% 0.168 261.6)
XYZ	xyz(13.0343, 10.7427, 48.3907)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2257BB #BB8622

analogous

#22A3BB #2257BB #3A22BB

triadic

#2257BB #BB2257 #57BB22

tetradic

#2257BB #BB22A3 #BB8622 #22BB3A

square

#2257BB #BB22A3 #BB8622 #22BB3A

split-complementary

#2257BB #BB3A22 #A3BB22

monochromatic

#0F2753 #193F87 #2257BB #3E75DC #729AE5

Accessibility & contrast

On white

6.67

#2257BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#2257BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2257BB

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2257BB	#FFFFFF	#000000	##FFFFFF
##2257BB	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0363BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2257bb;
/* rgb */ color: rgb(34, 87, 187);
/* oklch */ color: oklch(48.2% 0.168 261.6);

Tailwind

colors: {
  custom: {
    50: '#7785d0',
    500: '#2257bb',
    950: '#000000',
  },
}

SCSS

$custom: #2257bb;
$custom-light: #7785d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2257bb",
  "rgb": {
    "r": 34,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 219.216,
    "s": 69.231,
    "l": 43.333
  },
  "oklch": {
    "l": 0.48227,
    "c": 0.16781,
    "h": 261.6
  },
  "luminance": 0.10744
}

Semantic roles & 50–950 ramp

primary

#2257BB

secondary

#CCAB6D

accent

#AF3CEC

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2257BB

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

Preview Lab → · Contrast checker → · Palette generator →