#2D51BC#2D51BC

#2D51BC is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.5% C 0.174 H 265.8°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#2D51BC
RGB	rgb(45, 81, 188)
HSL	hsl(225, 61%, 46%)
HSV	hsv(225, 76%, 74%)
CMYK	cmyk(76.1%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(37.97, 25.63, -60.02)
CIE-LCH	lch(37.97, 65.27, 293.12°)
OKLab	oklab(47.47% -0.0126 -0.1732)
OKLCH	oklch(47.47% 0.174 265.8)
XYZ	xyz(13.0985, 10.0721, 48.8210)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D51BC #BC982D

analogous

#2D98BC #2D51BC #502DBC

triadic

#2D51BC #BC2D51 #51BC2D

tetradic

#2D51BC #BC2D98 #BC982D #2DBC50

square

#2D51BC #BC2D98 #BC982D #2DBC50

split-complementary

#2D51BC #BC502D #98BC2D

monochromatic

#152659 #213C8B #2D51BC #5172D5 #829AE1

Accessibility & contrast

On white

6.97

#2D51BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2D51BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D51BC

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D51BC	#FFFFFF	#000000	##FFFFFF
##2D51BC	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C0

Deuteranopia (green-blind)

#0053BA

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2d51bc;
/* rgb */ color: rgb(45, 81, 188);
/* oklch */ color: oklch(47.5% 0.174 265.8);

Tailwind

colors: {
  custom: {
    50: '#7b81d1',
    500: '#2d51bc',
    950: '#000000',
  },
}

SCSS

$custom: #2d51bc;
$custom-light: #7b81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d51bc",
  "rgb": {
    "r": 45,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 224.895,
    "s": 61.373,
    "l": 45.686
  },
  "oklch": {
    "l": 0.47472,
    "c": 0.17366,
    "h": 265.8
  },
  "luminance": 0.10074
}

Semantic roles & 50–950 ramp

primary

#2D51BC

secondary

#CAB67B

accent

#BC43E4

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2D51BC

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

Preview Lab → · Contrast checker → · Palette generator →