#3123D4#3123D4

#3123D4 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 43.1% C 0.248 H 272.3°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#3123D4
RGB	rgb(49, 35, 212)
HSL	hsl(245, 72%, 48%)
HSV	hsv(245, 83%, 83%)
CMYK	cmyk(76.9%, 83.5%, 0%, 16.9%)
CIE-LAB	lab(30.89, 60.33, -85.65)
CIE-LCH	lch(30.89, 104.76, 305.16°)
OKLab	oklab(43.11% 0.0098 -0.2477)
OKLCH	oklch(43.11% 0.248 272.3)
XYZ	xyz(13.7473, 6.6070, 62.8253)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3123D4 #C6D423

analogous

#236DD4 #3123D4 #8923D4

triadic

#3123D4 #D43123 #23D431

tetradic

#3123D4 #D4236D #C6D423 #23D489

square

#3123D4 #D4236D #C6D423 #23D489

split-complementary

#3123D4 #D48923 #6DD423

monochromatic

#19126B #251A9F #3123D4 #5D52E2 #8E86EB

Accessibility & contrast

On white

9.05

#3123D4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3123D4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3123D4

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3123D4	#FFFFFF	#000000	##FFFFFF
##3123D4	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051D9

Deuteranopia (green-blind)

#0040D1

Tritanopia (blue-blind)

#005D7F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3123d4;
/* rgb */ color: rgb(49, 35, 212);
/* oklch */ color: oklch(43.1% 0.248 272.3);

Tailwind

colors: {
  custom: {
    50: '#8665e3',
    500: '#3123d4',
    950: '#000000',
  },
}

SCSS

$custom: #3123d4;
$custom-light: #8665e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3123d4",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 212
  },
  "hsl": {
    "h": 244.746,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.43112,
    "c": 0.24794,
    "h": 272.3
  },
  "luminance": 0.06608
}

Semantic roles & 50–950 ramp

primary

#3123D4

secondary

#CED47E

accent

#EE39E0

background

#F9F6FE

surface

#F2EBFC

border

#CCC6D5

text

#0D0616

muted

#7E7A84

Preview Lab

Preview with #3123D4

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

Preview Lab → · Contrast checker → · Palette generator →