#2859B3#2859B3

#2859B3 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.153 H 261.3°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#2859B3
RGB	rgb(40, 89, 179)
HSL	hsl(219, 63%, 43%)
HSV	hsv(219, 78%, 70%)
CMYK	cmyk(77.7%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(39.33, 16.35, -52.55)
CIE-LCH	lch(39.33, 55.04, 287.28°)
OKLab	oklab(48.24% -0.0232 -0.1512)
OKLCH	oklch(48.24% 0.153 261.3)
XYZ	xyz(12.5812, 10.8491, 44.0701)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2859B3 #B38228

analogous

#289EB3 #2859B3 #3D28B3

triadic

#2859B3 #B32859 #59B328

tetradic

#2859B3 #B3289E #B38228 #28B33D

square

#2859B3 #B3289E #B38228 #28B33D

split-complementary

#2859B3 #B33D28 #9EB328

monochromatic

#12274F #1D4081 #2859B3 #4377D5 #759BE0

Accessibility & contrast

On white

6.62

#2859B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2859B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2859B3

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2859B3	#FFFFFF	#000000	##FFFFFF
##2859B3	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2263B6

Deuteranopia (green-blind)

#0057B1

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2859b3;
/* rgb */ color: rgb(40, 89, 179);
/* oklch */ color: oklch(48.2% 0.153 261.3);

Tailwind

colors: {
  custom: {
    50: '#7787ca',
    500: '#2859b3',
    950: '#000000',
  },
}

SCSS

$custom: #2859b3;
$custom-light: #7787ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2859b3",
  "rgb": {
    "r": 40,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 218.849,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48239,
    "c": 0.15294,
    "h": 261.3
  },
  "luminance": 0.10851
}

Semantic roles & 50–950 ramp

primary

#2859B3

secondary

#C8A86F

accent

#AC41E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2859B3

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

Preview Lab → · Contrast checker → · Palette generator →