#2155A6#2155A6

#2155A6 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.2% C 0.142 H 259.2°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#2155A6
RGB	rgb(33, 85, 166)
HSL	hsl(217, 67%, 39%)
HSV	hsv(217, 80%, 65%)
CMYK	cmyk(80.1%, 48.8%, 0%, 34.9%)
CIE-LAB	lab(37.06, 13.13, -48.51)
CIE-LCH	lch(37.06, 50.26, 285.14°)
OKLab	oklab(46.16% -0.0265 -0.1395)
OKLCH	oklch(46.16% 0.142 259.2)
XYZ	xyz(10.7561, 9.5722, 37.3497)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155A6 #A67221

analogous

#2198A6 #2155A6 #2F21A6

triadic

#2155A6 #A62155 #55A621

tetradic

#2155A6 #A62198 #A67221 #21A62F

square

#2155A6 #A62198 #A67221 #21A62F

split-complementary

#2155A6 #A62F21 #98A621

monochromatic

#0D2140 #173B73 #2155A6 #2F70D6 #6293E0

Accessibility & contrast

On white

7.20

#2155A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#2155A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2155A6

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155A6	#FFFFFF	#000000	##FFFFFF
##2155A6	1.00	7.20	2.91	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265EA9

Deuteranopia (green-blind)

#0052A4

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2155a6;
/* rgb */ color: rgb(33, 85, 166);
/* oklch */ color: oklch(46.2% 0.142 259.2);

Tailwind

colors: {
  custom: {
    50: '#7284c1',
    500: '#2155a6',
    950: '#000000',
  },
}

SCSS

$custom: #2155a6;
$custom-light: #7284c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2155a6",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 166
  },
  "hsl": {
    "h": 216.541,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46158,
    "c": 0.14196,
    "h": 259.2
  },
  "luminance": 0.09574
}

Semantic roles & 50–950 ramp

primary

#2155A6

secondary

#C59D5E

accent

#A73EEA

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2155A6

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

Preview Lab → · Contrast checker → · Palette generator →