#2F308C#2F308C

#2F308C is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.149 H 275.9°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#2F308C
RGB	rgb(47, 48, 140)
HSL	hsl(239, 50%, 37%)
HSV	hsv(239, 66%, 55%)
CMYK	cmyk(66.4%, 65.7%, 0%, 45.1%)
CIE-LAB	lab(25.60, 29.90, -51.28)
CIE-LCH	lch(25.60, 59.36, 300.24°)
OKLab	oklab(37.09% 0.0153 -0.1479)
OKLCH	oklch(37.09% 0.149 275.9)
XYZ	xyz(6.9613, 4.6111, 25.3290)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F308C #8C8B2F

analogous

#2F5F8C #2F308C #5D2F8C

triadic

#2F308C #8C2F30 #308C2F

tetradic

#2F308C #8C2F5F #8C8B2F #2F8C5D

square

#2F308C #8C2F5F #8C8B2F #2F8C5D

split-complementary

#2F308C #8C5D2F #5F8C2F

monochromatic

#101130 #20205E #2F308C #3E40BA #696ACD

Accessibility & contrast

On white

10.92

#2F308C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2F308C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F308C

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F308C	#FFFFFF	#000000	##FFFFFF
##2F308C	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418F

Deuteranopia (green-blind)

#00398A

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f308c;
/* rgb */ color: rgb(47, 48, 140);
/* oklch */ color: oklch(37.1% 0.149 275.9);

Tailwind

colors: {
  custom: {
    50: '#7468ae',
    500: '#2f308c',
    950: '#000000',
  },
}

SCSS

$custom: #2f308c;
$custom-light: #7468ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f308c",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 140
  },
  "hsl": {
    "h": 239.355,
    "s": 49.733,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37086,
    "c": 0.14864,
    "h": 275.9
  },
  "luminance": 0.04612
}

Semantic roles & 50–950 ramp

primary

#2F308C

secondary

#B4B363

accent

#D84FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F308C

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

Preview Lab → · Contrast checker → · Palette generator →