#2554B4#2554B4

#2554B4 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.1% C 0.161 H 262.4°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#2554B4
RGB	rgb(37, 84, 180)
HSL	hsl(220, 66%, 43%)
HSV	hsv(220, 79%, 71%)
CMYK	cmyk(79.4%, 53.3%, 0%, 29.4%)
CIE-LAB	lab(37.89, 19.71, -55.47)
CIE-LCH	lch(37.89, 58.86, 289.56°)
OKLab	oklab(47.14% -0.0213 -0.1599)
OKLCH	oklch(47.14% 0.161 262.4)
XYZ	xyz(12.1685, 10.0278, 44.4654)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2554B4 #B48525

analogous

#259BB4 #2554B4 #3E25B4

triadic

#2554B4 #B42554 #54B425

tetradic

#2554B4 #B4259B #B48525 #25B43E

square

#2554B4 #B4259B #B48525 #25B43E

split-complementary

#2554B4 #B43E25 #9BB425

monochromatic

#10254E #1B3C81 #2554B4 #3F71D7 #7196E2

Accessibility & contrast

On white

6.99

#2554B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2554B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2554B4

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2554B4	#FFFFFF	#000000	##FFFFFF
##2554B4	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0960B7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2554b4;
/* rgb */ color: rgb(37, 84, 180);
/* oklch */ color: oklch(47.1% 0.161 262.4);

Tailwind

colors: {
  custom: {
    50: '#7683cb',
    500: '#2554b4',
    950: '#000000',
  },
}

SCSS

$custom: #2554b4;
$custom-light: #7683cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2554b4",
  "rgb": {
    "r": 37,
    "g": 84,
    "b": 180
  },
  "hsl": {
    "h": 220.28,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47141,
    "c": 0.16128,
    "h": 262.4
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#2554B4

secondary

#C9AA6C

accent

#B13FE9

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2554B4

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

Preview Lab → · Contrast checker → · Palette generator →