#2D51B9#2D51B9

#2D51B9 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.2% C 0.170 H 265.7°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#2D51B9
RGB	rgb(45, 81, 185)
HSL	hsl(225, 61%, 45%)
HSV	hsv(225, 76%, 73%)
CMYK	cmyk(75.7%, 56.2%, 0%, 27.5%)
CIE-LAB	lab(37.74, 24.50, -58.64)
CIE-LCH	lch(37.74, 63.55, 292.67°)
OKLab	oklab(47.23% -0.0128 -0.1691)
OKLCH	oklch(47.23% 0.17 265.7)
XYZ	xyz(12.7785, 9.9441, 47.1355)
Luminance	0.0995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D51B9 #B9952D

analogous

#2D97B9 #2D51B9 #4F2DB9

triadic

#2D51B9 #B92D51 #51B92D

tetradic

#2D51B9 #B92D97 #B9952D #2DB94F

square

#2D51B9 #B92D97 #B9952D #2DB94F

split-complementary

#2D51B9 #B94F2D #97B92D

monochromatic

#152657 #213B88 #2D51B9 #4F71D4 #8099E0

Accessibility & contrast

On white

7.03

#2D51B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#2D51B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D51B9

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D51B9	#FFFFFF	#000000	##FFFFFF
##2D51B9	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BD

Deuteranopia (green-blind)

#0053B7

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2d51b9;
/* rgb */ color: rgb(45, 81, 185);
/* oklch */ color: oklch(47.2% 0.170 265.7);

Tailwind

colors: {
  custom: {
    50: '#7a81cf',
    500: '#2d51b9',
    950: '#000000',
  },
}

SCSS

$custom: #2d51b9;
$custom-light: #7a81cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d51b9",
  "rgb": {
    "r": 45,
    "g": 81,
    "b": 185
  },
  "hsl": {
    "h": 224.571,
    "s": 60.87,
    "l": 45.098
  },
  "oklch": {
    "l": 0.47227,
    "c": 0.1696,
    "h": 265.7
  },
  "luminance": 0.09946
}

Semantic roles & 50–950 ramp

primary

#2D51B9

secondary

#C9B479

accent

#BB44E4

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2D51B9

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

Preview Lab → · Contrast checker → · Palette generator →