#4259C9#4259C9
#4259C9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.175 H 270.3°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #4259C9 |
|---|---|
| RGB | rgb(66, 89, 201) |
| HSL | hsl(230, 56%, 52%) |
| HSV | hsv(230, 67%, 79%) |
| CMYK | cmyk(67.2%, 55.7%, 0%, 21.2%) |
| CIE-LAB | lab(42.03, 28.00, -60.95) |
| CIE-LCH | lch(42.03, 67.08, 294.67°) |
| OKLab | oklab(51.09% 0.0008 -0.1754) |
| OKLCH | oklch(51.09% 0.175 270.3) |
| XYZ | xyz(16.3582, 12.5185, 56.8013) |
| Luminance | 0.1252 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 3.13
Azul
#1D5DEC
ΔE00 4.74
Iris
#6258C4
ΔE00 5.38
Sapphire
#0F52BA
ΔE00 5.48
Dark Periwinkle
#665FD1
ΔE00 5.95
Royal Blue
#4169E1
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4259C9 #C9B242
analogous
#429CC9 #4259C9 #6F42C9
triadic
#4259C9 #C94259 #59C942
tetradic
#4259C9 #C9429C #C9B242 #42C96F
square
#4259C9 #C9429C #C9B242 #42C96F
split-complementary
#4259C9 #C96F42 #9CC942
monochromatic
#202E70 #2E41A0 #4259C9 #7283D7 #A1ADE4
Accessibility & contrast
On white
5.99
#4259C9 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#4259C9 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4259C9
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4259C9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4259C9 | 1.00 | 5.99 | 3.50 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006ACD
Deuteranopia (green-blind)
#005DC7
Tritanopia (blue-blind)
#007488
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #4259c9; /* rgb */ color: rgb(66, 89, 201); /* oklch */ color: oklch(51.1% 0.175 270.3);
Tailwind
colors: {
custom: {
50: '#8687da',
500: '#4259c9',
950: '#000000',
},
}SCSS
$custom: #4259c9; $custom-light: #8687da; $custom-dark: #000000;
JSON
{
"hex": "#4259c9",
"rgb": {
"r": 66,
"g": 89,
"b": 201
},
"hsl": {
"h": 229.778,
"s": 55.556,
"l": 52.353
},
"oklch": {
"l": 0.51093,
"c": 0.17538,
"h": 270.3
},
"luminance": 0.1252
}Semantic roles & 50–950 ramp
primary
#4259C9
secondary
#D1C796
accent
#C549DF
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0B15
muted
#7D7C83