#2159B1#2159B1

#2159B1 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.152 H 259.4°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#2159B1
RGB	rgb(33, 89, 177)
HSL	hsl(217, 69%, 41%)
HSV	hsv(217, 81%, 69%)
CMYK	cmyk(81.4%, 49.7%, 0%, 30.6%)
CIE-LAB	lab(38.97, 14.82, -51.96)
CIE-LCH	lch(38.97, 54.03, 285.92°)
OKLab	oklab(47.86% -0.0279 -0.1495)
OKLCH	oklch(47.86% 0.152 259.4)
XYZ	xyz(12.1325, 10.6409, 43.0009)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2159B1 #B17921

analogous

#21A1B1 #2159B1 #3121B1

triadic

#2159B1 #B12159 #59B121

tetradic

#2159B1 #B121A1 #B17921 #21B131

square

#2159B1 #B121A1 #B17921 #21B131

split-complementary

#2159B1 #B13121 #A1B121

monochromatic

#0E254A #173F7D #2159B1 #3675D9 #6999E3

Accessibility & contrast

On white

6.71

#2159B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#2159B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2159B1

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2159B1	#FFFFFF	#000000	##FFFFFF
##2159B1	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2463B4

Deuteranopia (green-blind)

#0056AF

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2159b1;
/* rgb */ color: rgb(33, 89, 177);
/* oklch */ color: oklch(47.9% 0.152 259.4);

Tailwind

colors: {
  custom: {
    50: '#7487c9',
    500: '#2159b1',
    950: '#000000',
  },
}

SCSS

$custom: #2159b1;
$custom-light: #7487c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2159b1",
  "rgb": {
    "r": 33,
    "g": 89,
    "b": 177
  },
  "hsl": {
    "h": 216.667,
    "s": 68.571,
    "l": 41.176
  },
  "oklch": {
    "l": 0.4786,
    "c": 0.1521,
    "h": 259.4
  },
  "luminance": 0.10642
}

Semantic roles & 50–950 ramp

primary

#2159B1

secondary

#C9A265

accent

#A73CEB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2159B1

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

Preview Lab → · Contrast checker → · Palette generator →