#2B3A7D#2B3A7D

#2B3A7D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.5% C 0.115 H 270.5°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A7D
RGB	rgb(43, 58, 125)
HSL	hsl(229, 49%, 33%)
HSV	hsv(229, 66%, 49%)
CMYK	cmyk(65.6%, 53.6%, 0%, 51%)
CIE-LAB	lab(26.79, 16.93, -39.99)
CIE-LCH	lch(26.79, 43.42, 292.95°)
OKLab	oklab(37.52% 0.001 -0.1147)
OKLCH	oklch(37.52% 0.115 270.5)
XYZ	xyz(6.2097, 5.0198, 20.0397)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A7D #7D6E2B

analogous

#2B637D #2B3A7D #452B7D

triadic

#2B3A7D #7D2B3A #3A7D2B

tetradic

#2B3A7D #7D2B63 #7D6E2B #2B7D45

square

#2B3A7D #7D2B63 #7D6E2B #2B7D45

split-complementary

#2B3A7D #7D452B #637D2B

monochromatic

#0C1022 #1B254F #2B3A7D #3B4FAB #5C6FC7

Accessibility & contrast

On white

10.48

#2B3A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2B3A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A7D

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A7D	#FFFFFF	#000000	##FFFFFF
##2B3A7D	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12437F

Deuteranopia (green-blind)

#003C7C

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3a7d;
/* rgb */ color: rgb(43, 58, 125);
/* oklch */ color: oklch(37.5% 0.115 270.5);

Tailwind

colors: {
  custom: {
    50: '#6e6fa3',
    500: '#2b3a7d',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a7d;
$custom-light: #6e6fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a7d",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 229.024,
    "s": 48.81,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37524,
    "c": 0.11466,
    "h": 270.5
  },
  "luminance": 0.0502
}

Semantic roles & 50–950 ramp

primary

#2B3A7D

secondary

#AD9D57

accent

#BF4FD8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2B3A7D

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

Preview Lab → · Contrast checker → · Palette generator →