#2F508B#2F508B

#2F508B is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.7% C 0.105 H 261.1°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#2F508B
RGB	rgb(47, 80, 139)
HSL	hsl(218, 49%, 36%)
HSV	hsv(218, 66%, 55%)
CMYK	cmyk(66.2%, 42.4%, 0%, 45.5%)
CIE-LAB	lab(34.41, 8.06, -36.45)
CIE-LCH	lch(34.41, 37.33, 282.48°)
OKLab	oklab(43.71% -0.0162 -0.1038)
OKLCH	oklch(43.71% 0.105 261.1)
XYZ	xyz(8.6995, 8.2049, 25.5463)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F508B #8B6A2F

analogous

#2F7E8B #2F508B #3C2F8B

triadic

#2F508B #8B2F50 #508B2F

tetradic

#2F508B #8B2F7E #8B6A2F #2F8B3C

square

#2F508B #8B2F7E #8B6A2F #2F8B3C

split-complementary

#2F508B #8B3C2F #7E8B2F

monochromatic

#101B30 #20365D #2F508B #3E6AB9 #688CCC

Accessibility & contrast

On white

7.95

#2F508B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#2F508B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F508B

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F508B	#FFFFFF	#000000	##FFFFFF
##2F508B	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35558D

Deuteranopia (green-blind)

#274D8A

Tritanopia (blue-blind)

#005D66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2f508b;
/* rgb */ color: rgb(47, 80, 139);
/* oklch */ color: oklch(43.7% 0.105 261.1);

Tailwind

colors: {
  custom: {
    50: '#7180ad',
    500: '#2f508b',
    950: '#000000',
  },
}

SCSS

$custom: #2f508b;
$custom-light: #7180ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f508b",
  "rgb": {
    "r": 47,
    "g": 80,
    "b": 139
  },
  "hsl": {
    "h": 218.478,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43705,
    "c": 0.10511,
    "h": 261.1
  },
  "luminance": 0.08206
}

Semantic roles & 50–950 ramp

primary

#2F508B

secondary

#B39663

accent

#A74FD9

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #2F508B

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

Preview Lab → · Contrast checker → · Palette generator →