#2F3EAB#2F3EAB

#2F3EAB is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.173 H 270.9°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2F3EAB
RGB	rgb(47, 62, 171)
HSL	hsl(233, 57%, 43%)
HSV	hsv(233, 73%, 67%)
CMYK	cmyk(72.5%, 63.7%, 0%, 32.9%)
CIE-LAB	lab(31.78, 31.99, -60.05)
CIE-LCH	lch(31.78, 68.04, 298.04°)
OKLab	oklab(42.46% 0.0026 -0.1735)
OKLCH	oklch(42.46% 0.174 270.9)
XYZ	xyz(10.2431, 6.9888, 39.3293)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.53

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3EAB #AB9C2F

analogous

#2F7CAB #2F3EAB #5E2FAB

triadic

#2F3EAB #AB2F3E #3EAB2F

tetradic

#2F3EAB #AB2F7C #AB9C2F #2FAB5E

square

#2F3EAB #AB2F7C #AB9C2F #2FAB5E

split-complementary

#2F3EAB #AB5E2F #7CAB2F

monochromatic

#151B4B #222D7B #2F3EAB #4A5ACD #7A86DA

Accessibility & contrast

On white

8.76

#2F3EAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F3EAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3EAB

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3EAB	#FFFFFF	#000000	##FFFFFF
##2F3EAB	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AF

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3eab;
/* rgb */ color: rgb(47, 62, 171);
/* oklch */ color: oklch(42.5% 0.173 270.9);

Tailwind

colors: {
  custom: {
    50: '#7973c5',
    500: '#2f3eab',
    950: '#000000',
  },
}

SCSS

$custom: #2f3eab;
$custom-light: #7973c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3eab",
  "rgb": {
    "r": 47,
    "g": 62,
    "b": 171
  },
  "hsl": {
    "h": 232.742,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42462,
    "c": 0.1735,
    "h": 270.9
  },
  "luminance": 0.0699
}

Semantic roles & 50–950 ramp

primary

#2F3EAB

secondary

#C3B973

accent

#CE48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F3EAB

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

Preview Lab → · Contrast checker → · Palette generator →