#2B3A7B#2B3A7B

#2B3A7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.112 H 270.4°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A7B
RGB	rgb(43, 58, 123)
HSL	hsl(229, 48%, 33%)
HSV	hsv(229, 65%, 48%)
CMYK	cmyk(65%, 52.8%, 0%, 51.8%)
CIE-LAB	lab(26.65, 16.18, -38.96)
CIE-LCH	lch(26.65, 42.19, 292.55°)
OKLab	oklab(37.37% 0.0008 -0.1116)
OKLCH	oklch(37.37% 0.112 270.4)
XYZ	xyz(6.0833, 4.9692, 19.3736)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A7B #7B6C2B

analogous

#2B627B #2B3A7B #442B7B

triadic

#2B3A7B #7B2B3A #3A7B2B

tetradic

#2B3A7B #7B2B62 #7B6C2B #2B7B44

square

#2B3A7B #7B2B62 #7B6C2B #2B7B44

split-complementary

#2B3A7B #7B442B #627B2B

monochromatic

#0B0F20 #1B254E #2B3A7B #3B4FA8 #5B6FC6

Accessibility & contrast

On white

10.53

#2B3A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2B3A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A7B

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A7B	#FFFFFF	#000000	##FFFFFF
##2B3A7B	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15437D

Deuteranopia (green-blind)

#003C7A

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2b3a7b;
/* rgb */ color: rgb(43, 58, 123);
/* oklch */ color: oklch(37.4% 0.112 270.4);

Tailwind

colors: {
  custom: {
    50: '#6d6fa2',
    500: '#2b3a7b',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a7b;
$custom-light: #6d6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a7b",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 123
  },
  "hsl": {
    "h": 228.75,
    "s": 48.193,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37369,
    "c": 0.11164,
    "h": 270.4
  },
  "luminance": 0.0497
}

Semantic roles & 50–950 ramp

primary

#2B3A7B

secondary

#AB9B56

accent

#BE50D8

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2B3A7B

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

Preview Lab → · Contrast checker → · Palette generator →