#2F307C#2F307C

#2F307C is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.126 H 277.3°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#2F307C
RGB	rgb(47, 48, 124)
HSL	hsl(239, 45%, 34%)
HSV	hsv(239, 62%, 49%)
CMYK	cmyk(62.1%, 61.3%, 0%, 51.4%)
CIE-LAB	lab(24.24, 24.17, -43.48)
CIE-LCH	lch(24.24, 49.75, 299.07°)
OKLab	oklab(35.66% 0.0161 -0.1249)
OKLCH	oklch(35.66% 0.126 277.3)
XYZ	xyz(5.8662, 4.1730, 19.5612)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F307C #7C7B2F

analogous

#2F567C #2F307C #542F7C

triadic

#2F307C #7C2F30 #307C2F

tetradic

#2F307C #7C2F56 #7C7B2F #2F7C54

square

#2F307C #7C2F56 #7C7B2F #2F7C54

split-complementary

#2F307C #7C542F #567C2F

monochromatic

#0D0E23 #1E1F50 #2F307C #4041A8 #6263C3

Accessibility & contrast

On white

11.45

#2F307C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#2F307C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F307C

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F307C	#FFFFFF	#000000	##FFFFFF
##2F307C	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00367A

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2f307c;
/* rgb */ color: rgb(47, 48, 124);
/* oklch */ color: oklch(35.7% 0.126 277.3);

Tailwind

colors: {
  custom: {
    50: '#7068a3',
    500: '#2f307c',
    950: '#000000',
  },
}

SCSS

$custom: #2f307c;
$custom-light: #7068a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f307c",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 124
  },
  "hsl": {
    "h": 239.221,
    "s": 45.029,
    "l": 33.529
  },
  "oklch": {
    "l": 0.35661,
    "c": 0.12597,
    "h": 277.3
  },
  "luminance": 0.04173
}

Semantic roles & 50–950 ramp

primary

#2F307C

secondary

#AAA95C

accent

#D353D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F307C

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

Preview Lab → · Contrast checker → · Palette generator →