#2159B3#2159B3
#2159B3 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.0% C 0.155 H 259.7°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).
Color values
| HEX | #2159B3 |
|---|---|
| RGB | rgb(33, 89, 179) |
| HSL | hsl(217, 69%, 42%) |
| HSV | hsv(217, 82%, 70%) |
| CMYK | cmyk(81.6%, 50.3%, 0%, 29.8%) |
| CIE-LAB | lab(39.11, 15.60, -52.92) |
| CIE-LCH | lch(39.11, 55.17, 286.43°) |
| OKLab | oklab(48.01% -0.0276 -0.1523) |
| OKLCH | oklch(48.01% 0.155 259.7) |
| XYZ | xyz(12.3333, 10.7213, 44.0585) |
| Luminance | 0.1072 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 2.53
Denim
#1560BD
ΔE00 2.85
Denim Blue
#3B5B92
ΔE00 4.45
Dusk Blue
#26538D
ΔE00 4.86
Light Navy Blue
#2E5A88
ΔE00 5.04
Denim (survey)
#3B638C
ΔE00 5.59
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2159B3 #B37B21
analogous
#21A2B3 #2159B3 #3221B3
triadic
#2159B3 #B32159 #59B321
tetradic
#2159B3 #B321A2 #B37B21 #21B332
square
#2159B3 #B321A2 #B37B21 #21B332
split-complementary
#2159B3 #B33221 #A2B321
monochromatic
#0E264C #173F7F #2159B3 #3776DA #6B99E4
Accessibility & contrast
On white
6.68
#2159B3 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.14
#2159B3 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #2159B3
6.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2159B3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2159B3 | 1.00 | 6.68 | 3.14 | 6.68 |
| #FFFFFF | 6.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.14 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2163B6
Deuteranopia (green-blind)
#0056B1
Tritanopia (blue-blind)
#006F7D
Achromatopsia (no color)
#5C5C5C
Design tokens & code
CSS
--color: #2159b3; /* rgb */ color: rgb(33, 89, 179); /* oklch */ color: oklch(48.0% 0.155 259.7);
Tailwind
colors: {
custom: {
50: '#7587ca',
500: '#2159b3',
950: '#000000',
},
}SCSS
$custom: #2159b3; $custom-light: #7587ca; $custom-dark: #000000;
JSON
{
"hex": "#2159b3",
"rgb": {
"r": 33,
"g": 89,
"b": 179
},
"hsl": {
"h": 216.986,
"s": 68.868,
"l": 41.569
},
"oklch": {
"l": 0.4801,
"c": 0.15482,
"h": 259.7
},
"luminance": 0.10723
}Semantic roles & 50–950 ramp
primary
#2159B3
secondary
#CAA366
accent
#A83CEC
background
#F7F8FC
surface
#EEEFF8
border
#C9CAD1
text
#0A0B13
muted
#7C7C82