#2F406B#2F406B

#2F406B is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.077 H 266.5°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#2F406B
RGB	rgb(47, 64, 107)
HSL	hsl(223, 39%, 30%)
HSV	hsv(223, 56%, 42%)
CMYK	cmyk(56.1%, 40.2%, 0%, 58%)
CIE-LAB	lab(27.66, 7.04, -27.18)
CIE-LCH	lch(27.66, 28.08, 284.52°)
OKLab	oklab(37.88% -0.0047 -0.0769)
OKLCH	oklch(37.88% 0.077 266.5)
XYZ	xyz(5.6586, 5.3323, 14.6381)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F406B #6B5A2F

analogous

#2F5E6B #2F406B #3C2F6B

triadic

#2F406B #6B2F40 #406B2F

tetradic

#2F406B #6B2F5E #6B5A2F #2F6B3C

square

#2F406B #6B2F5E #6B5A2F #2F6B3C

split-complementary

#2F406B #6B3C2F #5E6B2F

monochromatic

#0A0D16 #1C2740 #2F406B #425996 #5D76B8

Accessibility & contrast

On white

10.16

#2F406B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2F406B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F406B

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F406B	#FFFFFF	#000000	##FFFFFF
##2F406B	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F446D

Deuteranopia (green-blind)

#283F6A

Tritanopia (blue-blind)

#114950

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f406b;
/* rgb */ color: rgb(47, 64, 107);
/* oklch */ color: oklch(37.9% 0.077 266.5);

Tailwind

colors: {
  custom: {
    50: '#6c7495',
    500: '#2f406b',
    950: '#000000',
  },
}

SCSS

$custom: #2f406b;
$custom-light: #6c7495;
$custom-dark: #000000;

JSON

{
  "hex": "#2f406b",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 107
  },
  "hsl": {
    "h": 223,
    "s": 38.961,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37879,
    "c": 0.07705,
    "h": 266.5
  },
  "luminance": 0.05333
}

Semantic roles & 50–950 ramp

primary

#2F406B

secondary

#9C8959

accent

#AD59CF

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07080D

muted

#7A7B7E

Preview Lab

Preview with #2F406B

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

Preview Lab → · Contrast checker → · Palette generator →