#2A43EA
Closest named color: Vibrant Blue (#0339F8). oklch(49.2% 0.248 267.8), rgb(42, 67, 234).
Aa
White text reads best on this color (6.79:1).
About this color
#2A43EA is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.248 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Vibrant Blue (#0339F8), ΔE 0.036 away. White text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.248) |
| Temperature | cool |
| Nearest name | Vibrant Blue (#0339F8) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #2A43EA |
| RGB | rgb(42, 67, 234) |
| HSL | hsl(232, 82%, 54%) |
| OKLCH | oklch(49.2% 0.248 267.8) |
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 #2A43EA | 6.79:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #2A43EA | 3.08:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #2A43EA text on white | 6.79:1 | AA | Lc 82.3 | Fine for body text |
| #2A43EA text on black | 3.08:1 | AA large text | Lc -19.6 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400
#779BFF
oklch(70.7% 0.152 267.5)
-
Step 500
500
#567DFF
oklch(63% 0.198 267.8)
-
Step 600
600
#395BFF
oklch(55.6% 0.245 267.9)
-
Step 700
700 (this color)
#2A43EA
oklch(49.2% 0.248 267.8)
-
Step 800
800
#2239BD
oklch(42.7% 0.206 267.7)
-
Step 900
900
#1E3495
oklch(37.7% 0.161 267.7)
-
Step 950
950
#122057
oklch(27.1% 0.101 268)
#2A43EA 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) | #0064EF | 0.067 |
| Deuteranopia (no green cones) | #0051E7 | 0.029 |
| Tritanopia (no blue cones) | #007392 | 0.190 |
| Achromatopsia (no color) | #5B5B5B | 0.249 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A43EA
#2A43EA
oklch(49.2% 0.248 267.8)
- #795C00
#795C00
oklch(49.1% 0.1 87.1)
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 #2A43EA, closest first.
No curated palette has a color within ΔE 0.04 of #2A43EA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vibrant Blue #0339F8 ΔE 0.036
- Light Royal Blue #3A2EFE ΔE 0.040
- Electric Blue #0652FF ΔE 0.045
- Vivid Blue #152EFF ΔE 0.047
- Azul #1D5DEC ΔE 0.052
- Blue Blue #2242C7 ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.064
Use #2A43EA 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.