#4374BF#4374BF
#4374BF is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.128 H 258.7°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).
Color values
| HEX | #4374BF |
|---|---|
| RGB | rgb(67, 116, 191) |
| HSL | hsl(216, 49%, 51%) |
| HSV | hsv(216, 65%, 75%) |
| CMYK | cmyk(64.9%, 39.3%, 0%, 25.1%) |
| CIE-LAB | lab(48.81, 7.55, -44.28) |
| CIE-LCH | lch(48.81, 44.92, 279.68°) |
| OKLab | oklab(56.09% -0.0252 -0.126) |
| OKLCH | oklch(56.09% 0.128 258.7) |
| XYZ | xyz(17.9607, 17.4439, 51.7006) |
| Luminance | 0.1745 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.80
Medium Blue
#2C6FBB
ΔE00 3.15
Flat Blue
#3C73A8
ΔE00 3.71
French Blue
#436BAD
ΔE00 3.89
Bluish
#2976BB
ΔE00 4.10
Dull Blue
#49759C
ΔE00 4.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4374BF #BF8E43
analogous
#43B2BF #4374BF #5043BF
triadic
#4374BF #BF4374 #74BF43
tetradic
#4374BF #BF43B2 #BF8E43 #43BF50
square
#4374BF #BF43B2 #BF8E43 #43BF50
split-complementary
#4374BF #BF5043 #B2BF43
monochromatic
#223D65 #325893 #4374BF #7196CF #9EB8DE
Accessibility & contrast
On white
4.68
#4374BF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.49
#4374BF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4374BF
4.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4374BF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4374BF | 1.00 | 4.68 | 4.49 | 4.68 |
| #FFFFFF | 4.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.49 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#537AC2
Deuteranopia (green-blind)
#416FBD
Tritanopia (blue-blind)
#008590
Achromatopsia (no color)
#747474
Design tokens & code
CSS
--color: #4374bf; /* rgb */ color: rgb(67, 116, 191); /* oklch */ color: oklch(56.1% 0.128 258.7);
Tailwind
colors: {
custom: {
50: '#839bd3',
500: '#4374bf',
950: '#000000',
},
}SCSS
$custom: #4374bf; $custom-light: #839bd3; $custom-dark: #000000;
JSON
{
"hex": "#4374bf",
"rgb": {
"r": 67,
"g": 116,
"b": 191
},
"hsl": {
"h": 216.29,
"s": 49.206,
"l": 50.588
},
"oklch": {
"l": 0.56086,
"c": 0.12848,
"h": 258.7
},
"luminance": 0.17446
}Semantic roles & 50–950 ramp
primary
#4374BF
secondary
#CAB593
accent
#A24FD9
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0E14
muted
#7D7E83