#2B4D8B#2B4D8B

#2B4D8B is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.8% C 0.110 H 261.3°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#2B4D8B
RGB	rgb(43, 77, 139)
HSL	hsl(219, 53%, 36%)
HSV	hsv(219, 69%, 55%)
CMYK	cmyk(69.1%, 44.6%, 0%, 45.5%)
CIE-LAB	lab(33.32, 9.33, -38.20)
CIE-LCH	lch(33.32, 39.32, 283.73°)
OKLab	oklab(42.81% -0.0166 -0.1091)
OKLCH	oklch(42.81% 0.11 261.3)
XYZ	xyz(8.3087, 7.6846, 25.4665)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4D8B #8B692B

analogous

#2B7D8B #2B4D8B #392B8B

triadic

#2B4D8B #8B2B4D #4D8B2B

tetradic

#2B4D8B #8B2B7D #8B692B #2B8B39

square

#2B4D8B #8B2B7D #8B692B #2B8B39

split-complementary

#2B4D8B #8B392B #7D8B2B

monochromatic

#0E192E #1D335C #2B4D8B #3967BA #6288CE

Accessibility & contrast

On white

8.28

#2B4D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#2B4D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4D8B

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4D8B	#FFFFFF	#000000	##FFFFFF
##2B4D8B	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F538D

Deuteranopia (green-blind)

#1F4A8A

Tritanopia (blue-blind)

#005B65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2b4d8b;
/* rgb */ color: rgb(43, 77, 139);
/* oklch */ color: oklch(42.8% 0.110 261.3);

Tailwind

colors: {
  custom: {
    50: '#707ead',
    500: '#2b4d8b',
    950: '#000000',
  },
}

SCSS

$custom: #2b4d8b;
$custom-light: #707ead;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4d8b",
  "rgb": {
    "r": 43,
    "g": 77,
    "b": 139
  },
  "hsl": {
    "h": 218.75,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.42812,
    "c": 0.11036,
    "h": 261.3
  },
  "luminance": 0.07685
}

Semantic roles & 50–950 ramp

primary

#2B4D8B

secondary

#B5965D

accent

#A94CDC

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #2B4D8B

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

Preview Lab → · Contrast checker → · Palette generator →