#3028B3#3028B3

#3028B3 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.9% C 0.207 H 274.2°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#3028B3
RGB	rgb(48, 40, 179)
HSL	hsl(243, 63%, 43%)
HSV	hsv(243, 78%, 70%)
CMYK	cmyk(73.2%, 77.7%, 0%, 29.8%)
CIE-LAB	lab(27.84, 47.93, -71.31)
CIE-LCH	lch(27.84, 85.92, 303.91°)
OKLab	oklab(39.88% 0.015 -0.2063)
OKLCH	oklch(39.88% 0.207 274.2)
XYZ	xyz(10.1117, 5.3996, 43.1484)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3028B3 #ABB328

analogous

#2866B3 #3028B3 #7528B3

triadic

#3028B3 #B33028 #28B330

tetradic

#3028B3 #B32866 #ABB328 #28B375

square

#3028B3 #B32866 #ABB328 #28B375

split-complementary

#3028B3 #B37528 #66B328

monochromatic

#15124F #231D81 #3028B3 #4C43D5 #7B75E0

Accessibility & contrast

On white

10.10

#3028B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3028B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3028B3

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3028B3	#FFFFFF	#000000	##FFFFFF
##3028B3	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003BB1

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3028b3;
/* rgb */ color: rgb(48, 40, 179);
/* oklch */ color: oklch(39.9% 0.207 274.2);

Tailwind

colors: {
  custom: {
    50: '#7d65cb',
    500: '#3028b3',
    950: '#000000',
  },
}

SCSS

$custom: #3028b3;
$custom-light: #7d65cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3028b3",
  "rgb": {
    "r": 48,
    "g": 40,
    "b": 179
  },
  "hsl": {
    "h": 243.453,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.39881,
    "c": 0.20682,
    "h": 274.2
  },
  "luminance": 0.05401
}

Semantic roles & 50–950 ramp

primary

#3028B3

secondary

#C3C86F

accent

#E641DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3028B3

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

Preview Lab → · Contrast checker → · Palette generator →