#2973EB#2973EB

#2973EB is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.9% C 0.196 H 259.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2973EB
RGB	rgb(41, 115, 235)
HSL	hsl(217, 83%, 54%)
HSV	hsv(217, 83%, 92%)
CMYK	cmyk(82.6%, 51.1%, 0%, 7.8%)
CIE-LAB	lab(50.37, 21.09, -66.82)
CIE-LCH	lch(50.37, 70.07, 287.52°)
OKLab	oklab(57.91% -0.0342 -0.1926)
OKLCH	oklch(57.91% 0.196 259.9)
XYZ	xyz(22.0351, 18.7283, 81.0347)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2973EB #EBA129

analogous

#29D4EB #2973EB #4029EB

triadic

#2973EB #EB2973 #73EB29

tetradic

#2973EB #EB29D4 #EBA129 #29EB40

square

#2973EB #EB29D4 #EBA129 #29EB40

split-complementary

#2973EB #EB4029 #D4EB29

monochromatic

#0D3E8C #1256C4 #2973EB #6198F0 #99BCF5

Accessibility & contrast

On white

4.42

#2973EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#2973EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2973EB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2973EB	#FFFFFF	#000000	##000000
##2973EB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F81EF

Deuteranopia (green-blind)

#0070E9

Tritanopia (blue-blind)

#0090A4

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2973eb;
/* rgb */ color: rgb(41, 115, 235);
/* oklch */ color: oklch(57.9% 0.196 259.9);

Tailwind

colors: {
  custom: {
    50: '#839af2',
    500: '#2973eb',
    950: '#000000',
  },
}

SCSS

$custom: #2973eb;
$custom-light: #839af2;
$custom-dark: #000000;

JSON

{
  "hex": "#2973eb",
  "rgb": {
    "r": 41,
    "g": 115,
    "b": 235
  },
  "hsl": {
    "h": 217.113,
    "s": 82.906,
    "l": 54.118
  },
  "oklch": {
    "l": 0.57907,
    "c": 0.19563,
    "h": 259.9
  },
  "luminance": 0.18731
}

Semantic roles & 50–950 ramp

primary

#2973EB

secondary

#E1C28F

accent

#AC2FF9

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #2973EB

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

Preview Lab → · Contrast checker → · Palette generator →