#3147A3#3147A3

#3147A3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.151 H 269.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#3147A3
RGB	rgb(49, 71, 163)
HSL	hsl(228, 54%, 42%)
HSV	hsv(228, 70%, 64%)
CMYK	cmyk(69.9%, 56.4%, 0%, 36.1%)
CIE-LAB	lab(33.57, 23.39, -52.34)
CIE-LCH	lch(33.57, 57.33, 294.08°)
OKLab	oklab(43.61% -0.0024 -0.1507)
OKLCH	oklch(43.61% 0.151 269.1)
XYZ	xyz(10.1285, 7.8028, 35.6155)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147A3 #A38D31

analogous

#3180A3 #3147A3 #5431A3

triadic

#3147A3 #A33147 #47A331

tetradic

#3147A3 #A33180 #A38D31 #31A354

square

#3147A3 #A33180 #A38D31 #31A354

split-complementary

#3147A3 #A35431 #80A331

monochromatic

#151E45 #233374 #3147A3 #4962C8 #788AD6

Accessibility & contrast

On white

8.20

#3147A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3147A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147A3

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147A3	#FFFFFF	#000000	##FFFFFF
##3147A3	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#004AA1

Tritanopia (blue-blind)

#005D6E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3147a3;
/* rgb */ color: rgb(49, 71, 163);
/* oklch */ color: oklch(43.6% 0.151 269.1);

Tailwind

colors: {
  custom: {
    50: '#7879bf',
    500: '#3147a3',
    950: '#000000',
  },
}

SCSS

$custom: #3147a3;
$custom-light: #7879bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3147a3",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 163
  },
  "hsl": {
    "h": 228.421,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.43615,
    "c": 0.15069,
    "h": 269.1
  },
  "luminance": 0.07804
}

Semantic roles & 50–950 ramp

primary

#3147A3

secondary

#BFB071

accent

#C14BDD

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3147A3

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

Preview Lab → · Contrast checker → · Palette generator →