#4121C8
Closest named color: Violet Blue (#510AC9). oklch(42.6% 0.232 278.8), rgb(65, 33, 200).
Aa
White text reads best on this color (9.22:1).
About this color
#4121C8 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.232 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Violet Blue (#510AC9), ΔE 0.032 away. White text reads best on it, at 9.22:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.232) |
| Temperature | cool |
| Nearest name | Violet Blue (#510AC9) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #4121C8 |
| RGB | rgb(65, 33, 200) |
| HSL | hsl(251, 72%, 46%) |
| OKLCH | oklch(42.6% 0.232 278.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4121C8 | 9.22:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #4121C8 | 2.27:1 | Fails | Lc 14.2 | Not readable |
| #4121C8 text on white | 9.22:1 | AAA | Lc 89.8 | Fine for body text |
| #4121C8 text on black | 2.27:1 | Fails | Lc -12.5 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FF
oklch(93.6% 0.031 279.9)
-
Step 200
200
#D0D6FF
oklch(88.5% 0.057 278.6)
-
Step 300
300
#B2BBFF
oklch(81% 0.097 278.2)
-
Step 400
400
#8D94FF
oklch(70.8% 0.155 278.8)
-
Step 500
500
#7374FF
oklch(63.1% 0.202 278.6)
-
Step 600
600
#5F4EFF
oklch(55.7% 0.249 278.8)
-
Step 700
700
#5120F8
oklch(49.1% 0.28 278.8)
-
Step 800
800 (this color)
#4121C8
oklch(42.6% 0.232 278.8)
-
Step 900
900
#35269D
oklch(37.6% 0.181 278.9)
-
Step 950
950
#1E195C
oklch(27% 0.115 278.8)
#4121C8 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004ECC | 0.085 |
| Deuteranopia (no green cones) | #0041C5 | 0.068 |
| Tritanopia (no blue cones) | #005778 | 0.182 |
| Achromatopsia (no color) | #474747 | 0.234 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4121C8
#4121C8
oklch(42.6% 0.232 278.8)
- #5B4F00
#5B4F00
oklch(42.7% 0.088 99.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4121C8, closest first.
No curated palette has a color within ΔE 0.04 of #4121C8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Violet Blue #510AC9 ΔE 0.032
- Majorelle Blue #3F37C9 ΔE 0.033
- Indigo Blue #3A18B1 ΔE 0.043
- Purple Blue #5D21D0 ΔE 0.052
- Blurple #5539CC ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.056
- Blue Blue #2242C7 ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.062
Use #4121C8 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.