#2F45AB#2F45AB

#2F45AB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.165 H 269.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#2F45AB
RGB	rgb(47, 69, 171)
HSL	hsl(229, 57%, 43%)
HSV	hsv(229, 73%, 67%)
CMYK	cmyk(72.5%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(33.56, 27.41, -57.15)
CIE-LCH	lch(33.56, 63.38, 295.62°)
OKLab	oklab(43.78% -0.0025 -0.1649)
OKLCH	oklch(43.78% 0.165 269.1)
XYZ	xyz(10.6486, 7.7998, 39.4645)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F45AB #AB952F

analogous

#2F83AB #2F45AB #572FAB

triadic

#2F45AB #AB2F45 #45AB2F

tetradic

#2F45AB #AB2F83 #AB952F #2FAB57

square

#2F45AB #AB2F83 #AB952F #2FAB57

split-complementary

#2F45AB #AB572F #83AB2F

monochromatic

#151E4B #22327B #2F45AB #4A61CD #7A8BDA

Accessibility & contrast

On white

8.20

#2F45AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2F45AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F45AB

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F45AB	#FFFFFF	#000000	##FFFFFF
##2F45AB	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#0049A9

Tritanopia (blue-blind)

#005F71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f45ab;
/* rgb */ color: rgb(47, 69, 171);
/* oklch */ color: oklch(43.8% 0.165 269.1);

Tailwind

colors: {
  custom: {
    50: '#7978c5',
    500: '#2f45ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f45ab;
$custom-light: #7978c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f45ab",
  "rgb": {
    "r": 47,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 229.355,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.43779,
    "c": 0.16489,
    "h": 269.1
  },
  "luminance": 0.07801
}

Semantic roles & 50–950 ramp

primary

#2F45AB

secondary

#C3B573

accent

#C548E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2F45AB

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

Preview Lab → · Contrast checker → · Palette generator →