#3148B7#3148B7

#3148B7 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.5% C 0.177 H 269.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3148B7
RGB	rgb(49, 72, 183)
HSL	hsl(230, 58%, 45%)
HSV	hsv(230, 73%, 72%)
CMYK	cmyk(73.2%, 60.7%, 0%, 28.2%)
CIE-LAB	lab(35.41, 30.13, -61.25)
CIE-LCH	lch(35.41, 68.26, 296.19°)
OKLab	oklab(45.49% -0.0028 -0.1768)
OKLCH	oklch(45.49% 0.177 269.1)
XYZ	xyz(12.1283, 8.7053, 45.8317)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148B7 #B7A031

analogous

#318BB7 #3148B7 #5D31B7

triadic

#3148B7 #B73148 #48B731

tetradic

#3148B7 #B7318B #B7A031 #31B75D

square

#3148B7 #B7318B #B7A031 #31B75D

split-complementary

#3148B7 #B75D31 #8BB731

monochromatic

#172256 #243587 #3148B7 #5469D1 #8494DE

Accessibility & contrast

On white

7.66

#3148B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3148B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148B7

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148B7	#FFFFFF	#000000	##FFFFFF
##3148B7	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABB

Deuteranopia (green-blind)

#004DB5

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3148b7;
/* rgb */ color: rgb(49, 72, 183);
/* oklch */ color: oklch(45.5% 0.177 269.1);

Tailwind

colors: {
  custom: {
    50: '#7c7acd',
    500: '#3148b7',
    950: '#000000',
  },
}

SCSS

$custom: #3148b7;
$custom-light: #7c7acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3148b7",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 183
  },
  "hsl": {
    "h": 229.701,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45485,
    "c": 0.17686,
    "h": 269.1
  },
  "luminance": 0.08707
}

Semantic roles & 50–950 ramp

primary

#3148B7

secondary

#C8BB7C

accent

#C747E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3148B7

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

Preview Lab → · Contrast checker → · Palette generator →