#2830B4#2830B4

#2830B4 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 40.6% C 0.202 H 270.6°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#2830B4
RGB	rgb(40, 48, 180)
HSL	hsl(237, 64%, 43%)
HSV	hsv(237, 78%, 71%)
CMYK	cmyk(77.8%, 73.3%, 0%, 29.4%)
CIE-LAB	lab(29.05, 43.15, -69.92)
CIE-LCH	lch(29.05, 82.17, 301.68°)
OKLab	oklab(40.64% 0.0022 -0.2025)
OKLCH	oklch(40.64% 0.202 270.6)
XYZ	xyz(10.1674, 5.8592, 43.7662)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2830B4 #B4AC28

analogous

#2876B4 #2830B4 #6628B4

triadic

#2830B4 #B42830 #30B428

tetradic

#2830B4 #B42876 #B4AC28 #28B466

square

#2830B4 #B42876 #B4AC28 #28B466

split-complementary

#2830B4 #B46628 #76B428

monochromatic

#121550 #1D2382 #2830B4 #444CD5 #767CE1

Accessibility & contrast

On white

9.67

#2830B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2830B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2830B4

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2830B4	#FFFFFF	#000000	##FFFFFF
##2830B4	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2830b4;
/* rgb */ color: rgb(40, 48, 180);
/* oklch */ color: oklch(40.6% 0.202 270.6);

Tailwind

colors: {
  custom: {
    50: '#7a69cc',
    500: '#2830b4',
    950: '#000000',
  },
}

SCSS

$custom: #2830b4;
$custom-light: #7a69cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2830b4",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 180
  },
  "hsl": {
    "h": 236.571,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40644,
    "c": 0.20249,
    "h": 270.6
  },
  "luminance": 0.0586
}

Semantic roles & 50–950 ramp

primary

#2830B4

secondary

#C8C370

accent

#DD41E7

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2830B4

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

Preview Lab → · Contrast checker → · Palette generator →