#2B307F#2B307F

#2B307F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.131 H 274.8°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#2B307F
RGB	rgb(43, 48, 127)
HSL	hsl(236, 49%, 33%)
HSV	hsv(236, 66%, 50%)
CMYK	cmyk(66.1%, 62.2%, 0%, 50.2%)
CIE-LAB	lab(24.19, 24.54, -45.46)
CIE-LCH	lch(24.19, 51.66, 298.36°)
OKLab	oklab(35.63% 0.011 -0.1309)
OKLCH	oklch(35.63% 0.131 274.8)
XYZ	xyz(5.8827, 4.1593, 20.5674)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B307F #7F7A2B

analogous

#2B5A7F #2B307F #502B7F

triadic

#2B307F #7F2B30 #307F2B

tetradic

#2B307F #7F2B5A #7F7A2B #2B7F50

square

#2B307F #7F2B5A #7F7A2B #2B7F50

split-complementary

#2B307F #7F502B #5A7F2B

monochromatic

#0C0D24 #1C1F51 #2B307F #3A41AD #5C63C8

Accessibility & contrast

On white

11.46

#2B307F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#2B307F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B307F

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B307F	#FFFFFF	#000000	##FFFFFF
##2B307F	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D82

Deuteranopia (green-blind)

#00367D

Tritanopia (blue-blind)

#004352

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2b307f;
/* rgb */ color: rgb(43, 48, 127);
/* oklch */ color: oklch(35.6% 0.131 274.8);

Tailwind

colors: {
  custom: {
    50: '#6f68a5',
    500: '#2b307f',
    950: '#000000',
  },
}

SCSS

$custom: #2b307f;
$custom-light: #6f68a5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b307f",
  "rgb": {
    "r": 43,
    "g": 48,
    "b": 127
  },
  "hsl": {
    "h": 236.429,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3563,
    "c": 0.13133,
    "h": 274.8
  },
  "luminance": 0.0416
}

Semantic roles & 50–950 ramp

primary

#2B307F

secondary

#AEA958

accent

#D14FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B307F

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

Preview Lab → · Contrast checker → · Palette generator →