#3128A8#3128A8

#3128A8 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.8% C 0.193 H 275.6°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#3128A8
RGB	rgb(49, 40, 168)
HSL	hsl(244, 62%, 41%)
HSV	hsv(244, 76%, 66%)
CMYK	cmyk(70.8%, 76.2%, 0%, 34.1%)
CIE-LAB	lab(26.73, 44.50, -66.56)
CIE-LCH	lch(26.73, 80.06, 303.77°)
OKLab	oklab(38.76% 0.0188 -0.1924)
OKLCH	oklch(38.76% 0.193 275.6)
XYZ	xyz(9.0910, 4.9968, 37.5236)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3128A8 #9FA828

analogous

#285FA8 #3128A8 #7128A8

triadic

#3128A8 #A83128 #28A831

tetradic

#3128A8 #A8285F #9FA828 #28A871

square

#3128A8 #A8285F #9FA828 #28A871

split-complementary

#3128A8 #A87128 #5FA828

monochromatic

#141045 #231C77 #3128A8 #473DD1 #766EDC

Accessibility & contrast

On white

10.50

#3128A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#3128A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3128A8

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3128A8	#FFFFFF	#000000	##FFFFFF
##3128A8	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AC

Deuteranopia (green-blind)

#0039A6

Tritanopia (blue-blind)

#004D66

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3128a8;
/* rgb */ color: rgb(49, 40, 168);
/* oklch */ color: oklch(38.8% 0.193 275.6);

Tailwind

colors: {
  custom: {
    50: '#7b64c3',
    500: '#3128a8',
    950: '#000000',
  },
}

SCSS

$custom: #3128a8;
$custom-light: #7b64c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3128a8",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 168
  },
  "hsl": {
    "h": 244.219,
    "s": 61.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.38761,
    "c": 0.19333,
    "h": 275.6
  },
  "luminance": 0.04998
}

Semantic roles & 50–950 ramp

primary

#3128A8

secondary

#BDC369

accent

#E543D9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3128A8

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

Preview Lab → · Contrast checker → · Palette generator →