#3128B6#3128B6

#3128B6 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.3% C 0.210 H 274.3°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#3128B6
RGB	rgb(49, 40, 182)
HSL	hsl(244, 64%, 44%)
HSV	hsv(244, 78%, 71%)
CMYK	cmyk(73.1%, 78%, 0%, 28.6%)
CIE-LAB	lab(28.24, 48.97, -72.44)
CIE-LCH	lch(28.24, 87.44, 304.06°)
OKLab	oklab(40.27% 0.0156 -0.2095)
OKLCH	oklch(40.27% 0.21 274.3)
XYZ	xyz(10.4661, 5.5469, 44.7660)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3128B6 #ADB628

analogous

#2866B6 #3128B6 #7828B6

triadic

#3128B6 #B63128 #28B631

tetradic

#3128B6 #B62866 #ADB628 #28B678

square

#3128B6 #B62866 #ADB628 #28B678

split-complementary

#3128B6 #B67828 #66B628

monochromatic

#161252 #231D84 #3128B6 #4E45D6 #7E77E1

Accessibility & contrast

On white

9.95

#3128B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3128B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3128B6

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3128B6	#FFFFFF	#000000	##FFFFFF
##3128B6	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BA

Deuteranopia (green-blind)

#003CB4

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3128b6;
/* rgb */ color: rgb(49, 40, 182);
/* oklch */ color: oklch(40.3% 0.210 274.3);

Tailwind

colors: {
  custom: {
    50: '#7f65cd',
    500: '#3128b6',
    950: '#000000',
  },
}

SCSS

$custom: #3128b6;
$custom-light: #7f65cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3128b6",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 182
  },
  "hsl": {
    "h": 243.803,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40272,
    "c": 0.21012,
    "h": 274.3
  },
  "luminance": 0.05548
}

Semantic roles & 50–950 ramp

primary

#3128B6

secondary

#C3C971

accent

#E741DC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3128B6

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

Preview Lab → · Contrast checker → · Palette generator →