#2859B1#2859B1

#2859B1 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.1% C 0.150 H 261.0°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#2859B1
RGB	rgb(40, 89, 177)
HSL	hsl(219, 63%, 43%)
HSV	hsv(219, 77%, 69%)
CMYK	cmyk(77.4%, 49.7%, 0%, 30.6%)
CIE-LAB	lab(39.19, 15.58, -51.60)
CIE-LCH	lch(39.19, 53.90, 286.80°)
OKLab	oklab(48.09% -0.0235 -0.1483)
OKLCH	oklch(48.09% 0.15 261)
XYZ	xyz(12.3804, 10.7688, 43.0125)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2859B1 #B18028

analogous

#289EB1 #2859B1 #3B28B1

triadic

#2859B1 #B12859 #59B128

tetradic

#2859B1 #B1289E #B18028 #28B13B

square

#2859B1 #B1289E #B18028 #28B13B

split-complementary

#2859B1 #B13B28 #9EB128

monochromatic

#11274D #1D407F #2859B1 #4276D4 #749AE0

Accessibility & contrast

On white

6.66

#2859B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#2859B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2859B1

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2859B1	#FFFFFF	#000000	##FFFFFF
##2859B1	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2563B4

Deuteranopia (green-blind)

#0056AF

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2859b1;
/* rgb */ color: rgb(40, 89, 177);
/* oklch */ color: oklch(48.1% 0.150 261.0);

Tailwind

colors: {
  custom: {
    50: '#7687c9',
    500: '#2859b1',
    950: '#000000',
  },
}

SCSS

$custom: #2859b1;
$custom-light: #7687c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2859b1",
  "rgb": {
    "r": 40,
    "g": 89,
    "b": 177
  },
  "hsl": {
    "h": 218.54,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4809,
    "c": 0.1502,
    "h": 261
  },
  "luminance": 0.1077
}

Semantic roles & 50–950 ramp

primary

#2859B1

secondary

#C7A76E

accent

#AB42E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2859B1

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

Preview Lab → · Contrast checker → · Palette generator →