#2B457D#2B457D

#2B457D is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.0% C 0.100 H 263.7°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#2B457D
RGB	rgb(43, 69, 125)
HSL	hsl(221, 49%, 33%)
HSV	hsv(221, 66%, 49%)
CMYK	cmyk(65.6%, 44.8%, 0%, 51%)
CIE-LAB	lab(30.03, 9.40, -34.78)
CIE-LCH	lch(30.03, 36.03, 285.12°)
OKLab	oklab(40% -0.0109 -0.0992)
OKLCH	oklch(40% 0.1 263.7)
XYZ	xyz(6.8248, 6.2499, 20.2447)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B457D #7D632B

analogous

#2B6E7D #2B457D #3A2B7D

triadic

#2B457D #7D2B45 #457D2B

tetradic

#2B457D #7D2B6E #7D632B #2B7D3A

square

#2B457D #7D2B6E #7D632B #2B7D3A

split-complementary

#2B457D #7D3A2B #6E7D2B

monochromatic

#0C1322 #1B2C4F #2B457D #3B5EAB #5C7EC7

Accessibility & contrast

On white

9.33

#2B457D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2B457D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B457D

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B457D	#FFFFFF	#000000	##FFFFFF
##2B457D	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4B7F

Deuteranopia (green-blind)

#1F437C

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b457d;
/* rgb */ color: rgb(43, 69, 125);
/* oklch */ color: oklch(40.0% 0.100 263.7);

Tailwind

colors: {
  custom: {
    50: '#6d78a3',
    500: '#2b457d',
    950: '#000000',
  },
}

SCSS

$custom: #2b457d;
$custom-light: #6d78a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b457d",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 125
  },
  "hsl": {
    "h": 220.976,
    "s": 48.81,
    "l": 32.941
  },
  "oklch": {
    "l": 0.39999,
    "c": 0.09978,
    "h": 263.7
  },
  "luminance": 0.06251
}

Semantic roles & 50–950 ramp

primary

#2B457D

secondary

#AD9257

accent

#AD4FD8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B457D

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

Preview Lab → · Contrast checker → · Palette generator →