#2554B5#2554B5

#2554B5 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.2% C 0.163 H 262.5°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#2554B5
RGB	rgb(37, 84, 181)
HSL	hsl(220, 66%, 43%)
HSV	hsv(220, 80%, 71%)
CMYK	cmyk(79.6%, 53.6%, 0%, 29%)
CIE-LAB	lab(37.97, 20.10, -55.94)
CIE-LCH	lch(37.97, 59.44, 289.76°)
OKLab	oklab(47.22% -0.0212 -0.1613)
OKLCH	oklch(47.22% 0.163 262.5)
XYZ	xyz(12.2708, 10.0687, 45.0038)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2554B5 #B58625

analogous

#259CB5 #2554B5 #3E25B5

triadic

#2554B5 #B52554 #54B525

tetradic

#2554B5 #B5259C #B58625 #25B53E

square

#2554B5 #B5259C #B58625 #25B53E

split-complementary

#2554B5 #B53E25 #9CB525

monochromatic

#10254F #1B3C82 #2554B5 #3F71D8 #7297E2

Accessibility & contrast

On white

6.97

#2554B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2554B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2554B5

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2554B5	#FFFFFF	#000000	##FFFFFF
##2554B5	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0560B8

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2554b5;
/* rgb */ color: rgb(37, 84, 181);
/* oklch */ color: oklch(47.2% 0.163 262.5);

Tailwind

colors: {
  custom: {
    50: '#7783cc',
    500: '#2554b5',
    950: '#000000',
  },
}

SCSS

$custom: #2554b5;
$custom-light: #7783cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2554b5",
  "rgb": {
    "r": 37,
    "g": 84,
    "b": 181
  },
  "hsl": {
    "h": 220.417,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47219,
    "c": 0.16265,
    "h": 262.5
  },
  "luminance": 0.1007
}

Semantic roles & 50–950 ramp

primary

#2554B5

secondary

#C9AB6D

accent

#B13FE9

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2554B5

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

Preview Lab → · Contrast checker → · Palette generator →