#3148B8#3148B8

#3148B8 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.6% C 0.178 H 269.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#3148B8
RGB	rgb(49, 72, 184)
HSL	hsl(230, 58%, 46%)
HSV	hsv(230, 73%, 72%)
CMYK	cmyk(73.4%, 60.9%, 0%, 27.8%)
CIE-LAB	lab(35.49, 30.49, -61.70)
CIE-LCH	lch(35.49, 68.83, 296.30°)
OKLab	oklab(45.57% -0.0028 -0.1782)
OKLCH	oklch(45.57% 0.178 269.1)
XYZ	xyz(12.2327, 8.7471, 46.3818)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148B8 #B8A131

analogous

#318BB8 #3148B8 #5D31B8

triadic

#3148B8 #B83148 #48B831

tetradic

#3148B8 #B8318B #B8A131 #31B85D

square

#3148B8 #B8318B #B8A131 #31B85D

split-complementary

#3148B8 #B85D31 #8BB831

monochromatic

#172257 #243588 #3148B8 #556AD2 #8594DE

Accessibility & contrast

On white

7.64

#3148B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3148B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148B8

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148B8	#FFFFFF	#000000	##FFFFFF
##3148B8	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABC

Deuteranopia (green-blind)

#004DB6

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3148b8;
/* rgb */ color: rgb(49, 72, 184);
/* oklch */ color: oklch(45.6% 0.178 269.1);

Tailwind

colors: {
  custom: {
    50: '#7c7ace',
    500: '#3148b8',
    950: '#000000',
  },
}

SCSS

$custom: #3148b8;
$custom-light: #7c7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3148b8",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 184
  },
  "hsl": {
    "h": 229.778,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45571,
    "c": 0.1782,
    "h": 269.1
  },
  "luminance": 0.08748
}

Semantic roles & 50–950 ramp

primary

#3148B8

secondary

#C8BB7D

accent

#C747E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3148B8

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

Preview Lab → · Contrast checker → · Palette generator →