#2B387F#2B387F

#2B387F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.120 H 271.5°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B387F
RGB	rgb(43, 56, 127)
HSL	hsl(231, 49%, 33%)
HSV	hsv(231, 66%, 50%)
CMYK	cmyk(66.1%, 55.9%, 0%, 50.2%)
CIE-LAB	lab(26.37, 19.07, -41.92)
CIE-LCH	lch(26.37, 46.05, 294.46°)
OKLab	oklab(37.26% 0.0032 -0.1204)
OKLCH	oklch(37.26% 0.12 271.5)
XYZ	xyz(6.2399, 4.8737, 20.6864)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B387F #7F722B

analogous

#2B627F #2B387F #482B7F

triadic

#2B387F #7F2B38 #387F2B

tetradic

#2B387F #7F2B62 #7F722B #2B7F48

square

#2B387F #7F2B62 #7F722B #2B7F48

split-complementary

#2B387F #7F482B #627F2B

monochromatic

#0C1024 #1C2451 #2B387F #3A4CAD #5C6DC8

Accessibility & contrast

On white

10.63

#2B387F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2B387F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B387F

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B387F	#FFFFFF	#000000	##FFFFFF
##2B387F	1.00	10.63	1.97	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064281

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b387f;
/* rgb */ color: rgb(43, 56, 127);
/* oklch */ color: oklch(37.3% 0.120 271.5);

Tailwind

colors: {
  custom: {
    50: '#6e6ea5',
    500: '#2b387f',
    950: '#000000',
  },
}

SCSS

$custom: #2b387f;
$custom-light: #6e6ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b387f",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 127
  },
  "hsl": {
    "h": 230.714,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37256,
    "c": 0.12042,
    "h": 271.5
  },
  "luminance": 0.04874
}

Semantic roles & 50–950 ramp

primary

#2B387F

secondary

#AEA158

accent

#C44FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2B387F

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

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