#434FC1
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(48.6% 0.177 273.3), rgb(67, 79, 193).
Aa
White text reads best on this color (6.71:1).
About this color
#434FC1 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.177 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.044 away. White text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #434FC1 |
| RGB | rgb(67, 79, 193) |
| HSL | hsl(234, 50%, 51%) |
| OKLCH | oklch(48.6% 0.177 273.3) |
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 #434FC1 | 6.71:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #434FC1 | 3.12:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #434FC1 text on white | 6.71:1 | AA | Lc 82.7 | Fine for body text |
| #434FC1 text on black | 3.12:1 | AA large text | Lc -19.2 | 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
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#AEBDF9
oklch(80.8% 0.087 273.5)
-
Step 400
400
#8599F5
oklch(70.6% 0.136 273.2)
-
Step 500
500
#697DF1
oklch(63.1% 0.174 273.1)
-
Step 600
600
#5362E0
oklch(55.5% 0.19 273.4)
-
Step 700
700 (this color)
#434FC1
oklch(48.6% 0.177 273.3)
-
Step 800
800
#38439D
oklch(42.7% 0.145 273.3)
-
Step 900
900
#2F397D
oklch(37.6% 0.115 273.3)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#434FC1 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) | #0061C5 | 0.056 |
| Deuteranopia (no green cones) | #0056BF | 0.047 |
| Tritanopia (no blue cones) | #006B80 | 0.147 |
| Achromatopsia (no color) | #5C5C5C | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434FC1
#434FC1
oklch(48.6% 0.177 273.3)
- #735D00
#735D00
oklch(48.6% 0.1 92.7)
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 #434FC1, 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 0.044
- Warm Blue #4B57DB ΔE 0.046
- Blurple #5539CC ΔE 0.051
- Blue Blue #2242C7 ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.053
- Iris #6258C4 ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.068
Use #434FC1 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.