#434BBC
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(47.5% 0.175 274.5), rgb(67, 75, 188).
Aa
White text reads best on this color (7.06:1).
About this color
#434BBC is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.175 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.039 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #434BBC |
| RGB | rgb(67, 75, 188) |
| HSL | hsl(236, 47%, 50%) |
| OKLCH | oklch(47.5% 0.175 274.5) |
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 #434BBC | 7.06:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #434BBC | 2.97:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #434BBC text on white | 7.06:1 | AAA | Lc 84.0 | Fine for body text |
| #434BBC text on black | 2.97:1 | Fails | Lc -17.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#CFD7F9
oklch(88.4% 0.048 274.9)
-
Step 300
300
#B0BDF8
oklch(80.9% 0.085 274.7)
-
Step 400
400
#8899F4
oklch(70.8% 0.134 274.4)
-
Step 500
500
#6C7CF0
oklch(63.1% 0.173 274.4)
-
Step 600
600
#5662DF
oklch(55.6% 0.188 274.4)
-
Step 700
700 (this color)
#434BBC
oklch(47.5% 0.175 274.5)
-
Step 800
800
#3A429C
oklch(42.6% 0.145 274.6)
-
Step 900
900
#31397C
oklch(37.6% 0.113 274.5)
-
Step 950
950
#1D2249
oklch(27% 0.072 275)
#434BBC 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) | #005EC0 | 0.058 |
| Deuteranopia (no green cones) | #0053BA | 0.050 |
| Tritanopia (no blue cones) | #00677C | 0.146 |
| Achromatopsia (no color) | #585858 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434BBC
#434BBC
oklch(47.5% 0.175 274.5)
- #6E5B00
#6E5B00
oklch(47.6% 0.098 94.8)
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 #434BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.039
- Majorelle Blue #3F37C9 ΔE 0.047
- Blue Blue #2242C7 ΔE 0.048
- Blurple #5539CC ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.057
- Iris #6258C4 ΔE 0.060
- Blueberry #464196 ΔE 0.064
Use #434BBC 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.