#429DF3
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.1% 0.154 250.1), rgb(66, 157, 243).
Aa
Black text reads best on this color (7.34:1).
About this color
#429DF3 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.154 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.021 away. Black text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.34:1 |
| White text | 2.85:1 |
Values
| HEX | #429DF3 |
| RGB | rgb(66, 157, 243) |
| HSL | hsl(209, 88%, 61%) |
| OKLCH | oklch(68.1% 0.154 250.1) |
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 #429DF3 | 2.85:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #429DF3 | 7.34:1 | AAA | Lc 49.7 | Large or bold text, headings |
| #429DF3 text on white | 2.85:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #429DF3 text on black | 7.34:1 | AAA | Lc -47.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFC
oklch(93.6% 0.028 248.1)
-
Step 200
200
#BFDDFC
oklch(88.6% 0.054 249.3)
-
Step 300
300
#91C6FD
oklch(81% 0.096 250)
-
Step 400
400 (this color)
#429DF3
oklch(68.1% 0.154 250.1)
-
Step 500
500
#008CF0
oklch(63.1% 0.179 250.1)
-
Step 600
600
#0076CB
oklch(55.7% 0.158 250)
-
Step 700
700
#0063AC
oklch(49.2% 0.139 250)
-
Step 800
800
#00518E
oklch(42.8% 0.121 249.9)
-
Step 900
900
#004377
oklch(37.7% 0.106 249.9)
-
Step 950
950
#00274A
oklch(26.9% 0.077 250.5)
#429DF3 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) | #76A2F7 | 0.051 |
| Deuteranopia (no green cones) | #5C91F1 | 0.035 |
| Tritanopia (no blue cones) | #00B1BC | 0.115 |
| Achromatopsia (no color) | #999999 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #429DF3
#429DF3
oklch(68.1% 0.154 250.1)
- #D18600
#D18600
oklch(68.2% 0.147 70.4)
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 #429DF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.021
- Cornflower Blue #6495ED ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.042
- Dodger Blue #1E90FF ΔE 0.048
- Soft Blue #6488EA ΔE 0.057
- Periwinkle Blue #8F99FB ΔE 0.080
- Perrywinkle #8F8CE7 ΔE 0.085
- Water Blue #0E87CC ΔE 0.086
Use #429DF3 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.