#2F3B8D#2F3B8D

#2F3B8D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.136 H 272.3°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#2F3B8D
RGB	rgb(47, 59, 141)
HSL	hsl(232, 50%, 37%)
HSV	hsv(232, 67%, 55%)
CMYK	cmyk(66.7%, 58.2%, 0%, 44.7%)
CIE-LAB	lab(28.52, 22.95, -47.14)
CIE-LCH	lch(28.52, 52.43, 295.96°)
OKLab	oklab(39.27% 0.0054 -0.1356)
OKLCH	oklch(39.27% 0.136 272.3)
XYZ	xyz(7.5424, 5.6547, 25.8881)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3B8D #8D812F

analogous

#2F6A8D #2F3B8D #522F8D

triadic

#2F3B8D #8D2F3B #3B8D2F

tetradic

#2F3B8D #8D2F6A #8D812F #2F8D52

square

#2F3B8D #8D2F6A #8D812F #2F8D52

split-complementary

#2F3B8D #8D522F #6A8D2F

monochromatic

#101531 #20285F #2F3B8D #3E4EBB #6976CD

Accessibility & contrast

On white

9.85

#2F3B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F3B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3B8D

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3B8D	#FFFFFF	#000000	##FFFFFF
##2F3B8D	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f3b8d;
/* rgb */ color: rgb(47, 59, 141);
/* oklch */ color: oklch(39.3% 0.136 272.3);

Tailwind

colors: {
  custom: {
    50: '#7370af',
    500: '#2f3b8d',
    950: '#000000',
  },
}

SCSS

$custom: #2f3b8d;
$custom-light: #7370af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3b8d",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 232.34,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39274,
    "c": 0.13569,
    "h": 272.3
  },
  "luminance": 0.05655
}

Semantic roles & 50–950 ramp

primary

#2F3B8D

secondary

#B4AA64

accent

#C84EDA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3B8D

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

Preview Lab → · Contrast checker → · Palette generator →