#2971B4#2971B4
#2971B4 is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 53.8% C 0.127 H 250.2°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).
Color values
| HEX | #2971B4 |
|---|---|
| RGB | rgb(41, 113, 180) |
| HSL | hsl(209, 63%, 43%) |
| HSV | hsv(209, 77%, 71%) |
| CMYK | cmyk(77.2%, 37.2%, 0%, 29.4%) |
| CIE-LAB | lab(46.41, 1.51, -41.79) |
| CIE-LCH | lch(46.41, 41.82, 272.07°) |
| OKLab | oklab(53.76% -0.0429 -0.1191) |
| OKLCH | oklch(53.76% 0.127 250.2) |
| XYZ | xyz(15.0547, 15.5752, 45.3840) |
| Luminance | 0.1558 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Medium Blue
#2C6FBB
ΔE00 1.70
Flat Blue
#3C73A8
ΔE00 1.88
Bluish
#2976BB
ΔE00 1.95
Mid Blue
#276AB3
ΔE00 2.70
Muted Blue
#3B719F
ΔE00 2.70
Windows Blue
#3778BF
ΔE00 3.14
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2971B4 #B46C29
analogous
#29B4B1 #2971B4 #292BB4
triadic
#2971B4 #B42971 #71B429
tetradic
#2971B4 #B129B4 #B46C29 #2BB429
square
#2971B4 #B129B4 #B46C29 #2BB429
split-complementary
#2971B4 #B4292B #B4B129
monochromatic
#123250 #1E5282 #2971B4 #4590D5 #77AEE0
Accessibility & contrast
On white
5.10
#2971B4 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.12
#2971B4 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #2971B4
5.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2971B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2971B4 | 1.00 | 5.10 | 4.12 | 5.10 |
| #FFFFFF | 5.10 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.12 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.10 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5275B7
Deuteranopia (green-blind)
#3D68B3
Tritanopia (blue-blind)
#00818A
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #2971b4; /* rgb */ color: rgb(41, 113, 180); /* oklch */ color: oklch(53.8% 0.127 250.2);
Tailwind
colors: {
custom: {
50: '#7799cb',
500: '#2971b4',
950: '#000000',
},
}SCSS
$custom: #2971b4; $custom-light: #7799cb; $custom-dark: #000000;
JSON
{
"hex": "#2971b4",
"rgb": {
"r": 41,
"g": 113,
"b": 180
},
"hsl": {
"h": 208.921,
"s": 62.896,
"l": 43.333
},
"oklch": {
"l": 0.53758,
"c": 0.12659,
"h": 250.2
},
"luminance": 0.15577
}Semantic roles & 50–950 ramp
primary
#2971B4
secondary
#C89B71
accent
#9142E6
background
#F7F9FC
surface
#EEF2F8
border
#C9CCD1
text
#0A0D13
muted
#7C7E82