#2830B0#2830B0

#2830B0 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.198 H 270.8°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#2830B0
RGB	rgb(40, 48, 176)
HSL	hsl(236, 63%, 42%)
HSV	hsv(236, 77%, 69%)
CMYK	cmyk(77.3%, 72.7%, 0%, 31%)
CIE-LAB	lab(28.64, 41.78, -68.22)
CIE-LCH	lch(28.64, 80.00, 301.48°)
OKLab	oklab(40.22% 0.0028 -0.1975)
OKLCH	oklch(40.22% 0.198 270.8)
XYZ	xyz(9.7658, 5.6985, 41.6511)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.58

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2830B0 #B0A828

analogous

#2874B0 #2830B0 #6428B0

triadic

#2830B0 #B02830 #30B028

tetradic

#2830B0 #B02874 #B0A828 #28B064

square

#2830B0 #B02874 #B0A828 #28B064

split-complementary

#2830B0 #B06428 #74B028

monochromatic

#11154C #1D227E #2830B0 #414AD4 #737ADF

Accessibility & contrast

On white

9.81

#2830B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#2830B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2830B0

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2830B0	#FFFFFF	#000000	##FFFFFF
##2830B0	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB4

Deuteranopia (green-blind)

#003DAE

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2830b0;
/* rgb */ color: rgb(40, 48, 176);
/* oklch */ color: oklch(40.2% 0.198 270.8);

Tailwind

colors: {
  custom: {
    50: '#7969c9',
    500: '#2830b0',
    950: '#000000',
  },
}

SCSS

$custom: #2830b0;
$custom-light: #7969c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2830b0",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 176
  },
  "hsl": {
    "h": 236.471,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40223,
    "c": 0.19755,
    "h": 270.8
  },
  "luminance": 0.057
}

Semantic roles & 50–950 ramp

primary

#2830B0

secondary

#C6C16D

accent

#DC42E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2830B0

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

Preview Lab → · Contrast checker → · Palette generator →