#2B397B#2B397B

#2B397B is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.113 H 270.9°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#2B397B
RGB	rgb(43, 57, 123)
HSL	hsl(230, 48%, 33%)
HSV	hsv(230, 65%, 48%)
CMYK	cmyk(65%, 53.7%, 0%, 51.8%)
CIE-LAB	lab(26.36, 16.87, -39.42)
CIE-LCH	lch(26.36, 42.88, 293.17°)
OKLab	oklab(37.15% 0.0018 -0.113)
OKLCH	oklch(37.15% 0.113 270.9)
XYZ	xyz(6.0333, 4.8694, 19.3570)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B397B #7B6D2B

analogous

#2B617B #2B397B #452B7B

triadic

#2B397B #7B2B39 #397B2B

tetradic

#2B397B #7B2B61 #7B6D2B #2B7B45

square

#2B397B #7B2B61 #7B6D2B #2B7B45

split-complementary

#2B397B #7B452B #617B2B

monochromatic

#0B0F20 #1B244E #2B397B #3B4EA8 #5B6DC6

Accessibility & contrast

On white

10.64

#2B397B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2B397B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B397B

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B397B	#FFFFFF	#000000	##FFFFFF
##2B397B	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12427D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b397b;
/* rgb */ color: rgb(43, 57, 123);
/* oklch */ color: oklch(37.2% 0.113 270.9);

Tailwind

colors: {
  custom: {
    50: '#6d6fa2',
    500: '#2b397b',
    950: '#000000',
  },
}

SCSS

$custom: #2b397b;
$custom-light: #6d6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b397b",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 123
  },
  "hsl": {
    "h": 229.5,
    "s": 48.193,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37152,
    "c": 0.11303,
    "h": 270.9
  },
  "luminance": 0.0487
}

Semantic roles & 50–950 ramp

primary

#2B397B

secondary

#AB9D56

accent

#C050D8

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2B397B

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

Preview Lab → · Contrast checker → · Palette generator →