#3128A5#3128A5

#3128A5 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.4% C 0.190 H 275.9°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#3128A5
RGB	rgb(49, 40, 165)
HSL	hsl(244, 61%, 40%)
HSV	hsv(244, 76%, 65%)
CMYK	cmyk(70.3%, 75.8%, 0%, 35.3%)
CIE-LAB	lab(26.41, 43.53, -65.27)
CIE-LCH	lch(26.41, 78.45, 303.70°)
OKLab	oklab(38.44% 0.0194 -0.1887)
OKLCH	oklch(38.44% 0.19 275.9)
XYZ	xyz(8.8147, 4.8863, 36.0686)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3128A5 #9CA528

analogous

#285DA5 #3128A5 #6F28A5

triadic

#3128A5 #A53128 #28A531

tetradic

#3128A5 #A5285D #9CA528 #28A56F

square

#3128A5 #A5285D #9CA528 #28A56F

split-complementary

#3128A5 #A56F28 #5DA528

monochromatic

#141042 #221C74 #3128A5 #453BCF #746CDB

Accessibility & contrast

On white

10.62

#3128A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#3128A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3128A5

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3128A5	#FFFFFF	#000000	##FFFFFF
##3128A5	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A9

Deuteranopia (green-blind)

#0039A3

Tritanopia (blue-blind)

#004C65

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3128a5;
/* rgb */ color: rgb(49, 40, 165);
/* oklch */ color: oklch(38.4% 0.190 275.9);

Tailwind

colors: {
  custom: {
    50: '#7b64c1',
    500: '#3128a5',
    950: '#000000',
  },
}

SCSS

$custom: #3128a5;
$custom-light: #7b64c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3128a5",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 165
  },
  "hsl": {
    "h": 244.32,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38443,
    "c": 0.18967,
    "h": 275.9
  },
  "luminance": 0.04887
}

Semantic roles & 50–950 ramp

primary

#3128A5

secondary

#BBC267

accent

#E444D9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #3128A5

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

Preview Lab → · Contrast checker → · Palette generator →