#2858B3#2858B3

#2858B3 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.0% C 0.154 H 261.6°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#2858B3
RGB	rgb(40, 88, 179)
HSL	hsl(219, 63%, 43%)
HSV	hsv(219, 78%, 70%)
CMYK	cmyk(77.7%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(39.04, 17.01, -53.01)
CIE-LCH	lch(39.04, 55.67, 287.79°)
OKLab	oklab(48.02% -0.0224 -0.1525)
OKLCH	oklch(48.02% 0.154 261.6)
XYZ	xyz(12.4985, 10.6838, 44.0425)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2858B3 #B38328

analogous

#289DB3 #2858B3 #3E28B3

triadic

#2858B3 #B32858 #58B328

tetradic

#2858B3 #B3289D #B38328 #28B33E

square

#2858B3 #B3289D #B38328 #28B33E

split-complementary

#2858B3 #B33E28 #9DB328

monochromatic

#12274F #1D3F81 #2858B3 #4376D5 #759AE0

Accessibility & contrast

On white

6.69

#2858B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2858B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2858B3

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2858B3	#FFFFFF	#000000	##FFFFFF
##2858B3	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F63B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2858b3;
/* rgb */ color: rgb(40, 88, 179);
/* oklch */ color: oklch(48.0% 0.154 261.6);

Tailwind

colors: {
  custom: {
    50: '#7786ca',
    500: '#2858b3',
    950: '#000000',
  },
}

SCSS

$custom: #2858b3;
$custom-light: #7786ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2858b3",
  "rgb": {
    "r": 40,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 219.281,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48023,
    "c": 0.15417,
    "h": 261.6
  },
  "luminance": 0.10685
}

Semantic roles & 50–950 ramp

primary

#2858B3

secondary

#C8A96F

accent

#AD41E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2858B3

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

Preview Lab → · Contrast checker → · Palette generator →