#3123B0#3123B0

#3123B0 is a dark, highly saturated blue. Relative luminance 0.050; OKLCH L 39.0% C 0.207 H 275.3°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#3123B0
RGB	rgb(49, 35, 176)
HSL	hsl(246, 67%, 41%)
HSV	hsv(246, 80%, 69%)
CMYK	cmyk(72.2%, 80.1%, 0%, 31%)
CIE-LAB	lab(26.70, 49.61, -71.40)
CIE-LCH	lch(26.70, 86.94, 304.79°)
OKLab	oklab(39% 0.0191 -0.2065)
OKLCH	oklch(39% 0.207 275.3)
XYZ	xyz(9.7015, 4.9887, 41.5175)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123B0 #A2B023

analogous

#235CB0 #3123B0 #7823B0

triadic

#3123B0 #B03123 #23B031

tetradic

#3123B0 #B0235C #A2B023 #23B078

square

#3123B0 #B0235C #A2B023 #23B078

split-complementary

#3123B0 #B07823 #5CB023

monochromatic

#150F4A #23197D #3123B0 #4839D8 #776CE2

Accessibility & contrast

On white

10.51

#3123B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#3123B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123B0

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123B0	#FFFFFF	#000000	##FFFFFF
##3123B0	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B4

Deuteranopia (green-blind)

#0039AE

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3123b0;
/* rgb */ color: rgb(49, 35, 176);
/* oklch */ color: oklch(39.0% 0.207 275.3);

Tailwind

colors: {
  custom: {
    50: '#7e62c9',
    500: '#3123b0',
    950: '#000000',
  },
}

SCSS

$custom: #3123b0;
$custom-light: #7e62c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3123b0",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 176
  },
  "hsl": {
    "h": 245.957,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39003,
    "c": 0.20735,
    "h": 275.3
  },
  "luminance": 0.0499
}

Semantic roles & 50–950 ramp

primary

#3123B0

secondary

#BEC867

accent

#EA3ED9

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3123B0

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

Preview Lab → · Contrast checker → · Palette generator →