#3D9AFE
Closest named color: Chefchaouen Blue (#4895EF). oklch(68% 0.172 253.1), rgb(61, 154, 254).
Aa
Black text reads best on this color (7.25:1).
About this color
#3D9AFE is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.172 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.024 away. Black text reads best on it, at 7.25:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.25:1 |
| White text | 2.89:1 |
Values
| HEX | #3D9AFE |
| RGB | rgb(61, 154, 254) |
| HSL | hsl(211, 99%, 62%) |
| OKLCH | oklch(68% 0.172 253.1) |
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 #3D9AFE | 2.89:1 | Fails | Lc -60.1 | Content text, not long reading |
| Black text on #3D9AFE | 7.25:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #3D9AFE text on white | 2.89:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #3D9AFE text on black | 7.25:1 | AAA | Lc -47.0 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DCECFF
oklch(93.7% 0.031 252.7)
-
Step 200
200
#BFDCFF
oklch(88.5% 0.058 253.3)
-
Step 300
300
#93C5FF
oklch(81% 0.098 252.7)
-
Step 400
400 (this color)
#3D9AFE
oklch(68% 0.172 253.1)
-
Step 500
500
#0089FA
oklch(63.1% 0.195 253)
-
Step 600
600
#0073D4
oklch(55.6% 0.172 253.1)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#00264E
oklch(27% 0.085 253.5)
#3D9AFE 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) | #6AA1FF | 0.045 |
| Deuteranopia (no green cones) | #4A90FC | 0.026 |
| Tritanopia (no blue cones) | #00B2C0 | 0.129 |
| Achromatopsia (no color) | #989898 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9AFE
#3D9AFE
oklch(68% 0.172 253.1)
- #CD8800
#CD8800
oklch(68% 0.145 73.4)
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 #3D9AFE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.024
- Dodger Blue #1E90FF ΔE 0.033
- Cornflower Blue #6495ED ΔE 0.038
- Dark Sky Blue #448EE4 ΔE 0.045
- Soft Blue #6488EA ΔE 0.055
- Periwinkle Blue #8F99FB ΔE 0.082
- Lavender Blue #8B88F8 ΔE 0.085
- Cornflower #6A79F7 ΔE 0.085
Use #3D9AFE 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.