#2155A9#2155A9

#2155A9 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.4% C 0.146 H 259.7°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#2155A9
RGB	rgb(33, 85, 169)
HSL	hsl(217, 67%, 40%)
HSV	hsv(217, 80%, 66%)
CMYK	cmyk(80.5%, 49.7%, 0%, 33.7%)
CIE-LAB	lab(37.27, 14.31, -49.97)
CIE-LCH	lch(37.27, 51.98, 285.98°)
OKLab	oklab(46.38% -0.026 -0.1437)
OKLCH	oklch(46.38% 0.146 259.7)
XYZ	xyz(11.0345, 9.6836, 38.8160)
Luminance	0.0969 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155A9 #A97521

analogous

#2199A9 #2155A9 #3121A9

triadic

#2155A9 #A92155 #55A921

tetradic

#2155A9 #A92199 #A97521 #21A931

square

#2155A9 #A92199 #A97521 #21A931

split-complementary

#2155A9 #A93121 #99A921

monochromatic

#0D2143 #173B76 #2155A9 #3170D7 #6493E1

Accessibility & contrast

On white

7.15

#2155A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2155A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2155A9

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155A9	#FFFFFF	#000000	##FFFFFF
##2155A9	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235EAC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2155a9;
/* rgb */ color: rgb(33, 85, 169);
/* oklch */ color: oklch(46.4% 0.146 259.7);

Tailwind

colors: {
  custom: {
    50: '#7384c3',
    500: '#2155a9',
    950: '#000000',
  },
}

SCSS

$custom: #2155a9;
$custom-light: #7384c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2155a9",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 169
  },
  "hsl": {
    "h": 217.059,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46381,
    "c": 0.14608,
    "h": 259.7
  },
  "luminance": 0.09685
}

Semantic roles & 50–950 ramp

primary

#2155A9

secondary

#C69F60

accent

#A83EEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2155A9

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

Preview Lab → · Contrast checker → · Palette generator →