#2F278B#2F278B

#2F278B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.5% C 0.158 H 278.2°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#2F278B
RGB	rgb(47, 39, 139)
HSL	hsl(245, 56%, 35%)
HSV	hsv(245, 72%, 55%)
CMYK	cmyk(66.2%, 71.9%, 0%, 45.5%)
CIE-LAB	lab(23.40, 35.23, -54.26)
CIE-LCH	lch(23.40, 64.69, 302.99°)
OKLab	oklab(35.47% 0.0225 -0.1566)
OKLCH	oklch(35.47% 0.158 278.2)
XYZ	xyz(6.5565, 3.9189, 24.8320)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F278B #838B27

analogous

#27518B #2F278B #61278B

triadic

#2F278B #8B2F27 #278B2F

tetradic

#2F278B #8B2751 #838B27 #278B61

square

#2F278B #8B2751 #838B27 #278B61

split-complementary

#2F278B #8B6127 #518B27

monochromatic

#0F0C2B #1F1A5B #2F278B #3F34BB #655BD1

Accessibility & contrast

On white

11.77

#2F278B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2F278B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F278B

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F278B	#FFFFFF	#000000	##FFFFFF
##2F278B	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2f278b;
/* rgb */ color: rgb(47, 39, 139);
/* oklch */ color: oklch(35.5% 0.158 278.2);

Tailwind

colors: {
  custom: {
    50: '#7462ae',
    500: '#2f278b',
    950: '#000000',
  },
}

SCSS

$custom: #2f278b;
$custom-light: #7462ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f278b",
  "rgb": {
    "r": 47,
    "g": 39,
    "b": 139
  },
  "hsl": {
    "h": 244.8,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35469,
    "c": 0.1582,
    "h": 278.2
  },
  "luminance": 0.03919
}

Semantic roles & 50–950 ramp

primary

#2F278B

secondary

#AFB658

accent

#DF48D3

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #2F278B

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

Preview Lab → · Contrast checker → · Palette generator →