#2A57C7#2A57C7

#2A57C7 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.5% C 0.182 H 264.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#2A57C7
RGB	rgb(42, 87, 199)
HSL	hsl(223, 65%, 47%)
HSV	hsv(223, 79%, 78%)
CMYK	cmyk(78.9%, 56.3%, 0%, 22%)
CIE-LAB	lab(40.30, 25.54, -62.66)
CIE-LCH	lch(40.30, 67.66, 292.18°)
OKLab	oklab(49.45% -0.0184 -0.1809)
OKLCH	oklch(49.45% 0.182 264.2)
XYZ	xyz(14.6682, 11.4304, 55.4550)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57C7 #C79A2A

analogous

#2AA5C7 #2A57C7 #4C2AC7

triadic

#2A57C7 #C72A57 #57C72A

tetradic

#2A57C7 #C72AA5 #C79A2A #2AC74C

square

#2A57C7 #C72AA5 #C79A2A #2AC74C

split-complementary

#2A57C7 #C74C2A #A5C72A

monochromatic

#152B62 #1F4194 #2A57C7 #537ADB #86A1E5

Accessibility & contrast

On white

6.39

#2A57C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#2A57C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57C7

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57C7	#FFFFFF	#000000	##FFFFFF
##2A57C7	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CB

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #2a57c7;
/* rgb */ color: rgb(42, 87, 199);
/* oklch */ color: oklch(49.5% 0.182 264.2);

Tailwind

colors: {
  custom: {
    50: '#7c85d9',
    500: '#2a57c7',
    950: '#000000',
  },
}

SCSS

$custom: #2a57c7;
$custom-light: #7c85d9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57c7",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 199
  },
  "hsl": {
    "h": 222.803,
    "s": 65.145,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49454,
    "c": 0.18182,
    "h": 264.2
  },
  "luminance": 0.11432
}

Semantic roles & 50–950 ramp

primary

#2A57C7

secondary

#CFB87E

accent

#B840E8

background

#F8F8FD

surface

#EFEFFB

border

#CACAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #2A57C7

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

Preview Lab → · Contrast checker → · Palette generator →