#2A5DD0#2A5DD0

#2A5DD0 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.4% C 0.186 H 263.3°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#2A5DD0
RGB	rgb(42, 93, 208)
HSL	hsl(222, 66%, 49%)
HSV	hsv(222, 80%, 82%)
CMYK	cmyk(79.8%, 55.3%, 0%, 18.4%)
CIE-LAB	lab(42.57, 25.05, -64.15)
CIE-LCH	lch(42.57, 68.87, 291.33°)
OKLab	oklab(51.38% -0.0218 -0.1852)
OKLCH	oklch(51.38% 0.186 263.3)
XYZ	xyz(16.2503, 12.8731, 61.2906)
Luminance	0.1288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A5DD0 #D09D2A

analogous

#2AB0D0 #2A5DD0 #4A2AD0

triadic

#2A5DD0 #D02A5D #5DD02A

tetradic

#2A5DD0 #D02AB0 #D09D2A #2AD04A

square

#2A5DD0 #D02AB0 #D09D2A #2AD04A

split-complementary

#2A5DD0 #D04A2A #B0D02A

monochromatic

#152F6A #20469D #2A5DD0 #5A82DE #8DA9E8

Accessibility & contrast

On white

5.87

#2A5DD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#2A5DD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A5DD0

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A5DD0	#FFFFFF	#000000	##FFFFFF
##2A5DD0	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD4

Deuteranopia (green-blind)

#005DCE

Tritanopia (blue-blind)

#007A8D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2a5dd0;
/* rgb */ color: rgb(42, 93, 208);
/* oklch */ color: oklch(51.4% 0.186 263.3);

Tailwind

colors: {
  custom: {
    50: '#7e8adf',
    500: '#2a5dd0',
    950: '#000000',
  },
}

SCSS

$custom: #2a5dd0;
$custom-light: #7e8adf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a5dd0",
  "rgb": {
    "r": 42,
    "g": 93,
    "b": 208
  },
  "hsl": {
    "h": 221.566,
    "s": 66.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51383,
    "c": 0.18645,
    "h": 263.3
  },
  "luminance": 0.12875
}

Semantic roles & 50–950 ramp

primary

#2A5DD0

secondary

#D2BA84

accent

#B53EE9

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #2A5DD0

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

Preview Lab → · Contrast checker → · Palette generator →