#2155A0#2155A0

#2155A0 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 45.7% C 0.134 H 258.1°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#2155A0
RGB	rgb(33, 85, 160)
HSL	hsl(215, 66%, 38%)
HSV	hsv(215, 79%, 63%)
CMYK	cmyk(79.4%, 46.9%, 0%, 37.3%)
CIE-LAB	lab(36.66, 10.75, -45.57)
CIE-LCH	lch(36.66, 46.83, 283.28°)
OKLab	oklab(45.72% -0.0275 -0.1308)
OKLCH	oklch(45.72% 0.134 258.1)
XYZ	xyz(10.2185, 9.3572, 34.5185)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155A0 #A06C21

analogous

#2194A0 #2155A0 #2C21A0

triadic

#2155A0 #A02155 #55A021

tetradic

#2155A0 #A02194 #A06C21 #21A02C

square

#2155A0 #A02194 #A06C21 #21A02C

split-complementary

#2155A0 #A02C21 #94A021

monochromatic

#0C1F3B #173A6D #2155A0 #2B70D3 #5E92DE

Accessibility & contrast

On white

7.31

#2155A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#2155A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2155A0

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155A0	#FFFFFF	#000000	##FFFFFF
##2155A0	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5CA3

Deuteranopia (green-blind)

#0C519F

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2155a0;
/* rgb */ color: rgb(33, 85, 160);
/* oklch */ color: oklch(45.7% 0.134 258.1);

Tailwind

colors: {
  custom: {
    50: '#7084bd',
    500: '#2155a0',
    950: '#000000',
  },
}

SCSS

$custom: #2155a0;
$custom-light: #7084bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2155a0",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 160
  },
  "hsl": {
    "h": 215.433,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.45721,
    "c": 0.13367,
    "h": 258.1
  },
  "luminance": 0.09358
}

Semantic roles & 50–950 ramp

primary

#2155A0

secondary

#C2985B

accent

#A33FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2155A0

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

Preview Lab → · Contrast checker → · Palette generator →