#2B457F#2B457F

#2B457F is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.1% C 0.103 H 264.1°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B457F
RGB	rgb(43, 69, 127)
HSL	hsl(221, 49%, 33%)
HSV	hsv(221, 66%, 50%)
CMYK	cmyk(66.1%, 45.7%, 0%, 50.2%)
CIE-LAB	lab(30.16, 10.15, -35.83)
CIE-LCH	lch(30.16, 37.24, 285.82°)
OKLab	oklab(40.14% -0.0105 -0.1023)
OKLCH	oklch(40.14% 0.103 264.1)
XYZ	xyz(6.9538, 6.3015, 20.9244)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B457F #7F652B

analogous

#2B6F7F #2B457F #3B2B7F

triadic

#2B457F #7F2B45 #457F2B

tetradic

#2B457F #7F2B6F #7F652B #2B7F3B

square

#2B457F #7F2B6F #7F652B #2B7F3B

split-complementary

#2B457F #7F3B2B #6F7F2B

monochromatic

#0C1324 #1C2C51 #2B457F #3A5EAD #5C7EC8

Accessibility & contrast

On white

9.29

#2B457F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2B457F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B457F

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B457F	#FFFFFF	#000000	##FFFFFF
##2B457F	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4B81

Deuteranopia (green-blind)

#1C437E

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b457f;
/* rgb */ color: rgb(43, 69, 127);
/* oklch */ color: oklch(40.1% 0.103 264.1);

Tailwind

colors: {
  custom: {
    50: '#6e78a4',
    500: '#2b457f',
    950: '#000000',
  },
}

SCSS

$custom: #2b457f;
$custom-light: #6e78a4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b457f",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 127
  },
  "hsl": {
    "h": 221.429,
    "s": 49.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40137,
    "c": 0.1028,
    "h": 264.1
  },
  "luminance": 0.06302
}

Semantic roles & 50–950 ramp

primary

#2B457F

secondary

#AE9358

accent

#AE4FD9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B457F

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

Preview Lab → · Contrast checker → · Palette generator →