#3291FD
Closest named color: Dodger Blue (#1E90FF). oklch(65.7% 0.183 254.6), rgb(50, 145, 253).
Aa
Black text reads best on this color (6.60:1).
About this color
#3291FD is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.183 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.010 away. Black text reads best on it, at 6.60:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.60:1 |
| White text | 3.17:1 |
Values
| HEX | #3291FD |
| RGB | rgb(50, 145, 253) |
| HSL | hsl(212, 98%, 59%) |
| OKLCH | oklch(65.7% 0.183 254.6) |
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 #3291FD | 3.17:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #3291FD | 6.60:1 | AA | Lc 45.6 | Large or bold text, headings |
| #3291FD text on white | 3.17:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #3291FD text on black | 6.60:1 | AA | Lc -43.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C3DBFA
oklch(88.4% 0.05 254.9)
-
Step 300
300
#99C4FA
oklch(80.9% 0.09 254.4)
-
Step 400
400
#5EA3F7
oklch(70.7% 0.142 254.4)
-
Step 500
500 (this color)
#3291FD
oklch(65.7% 0.183 254.6)
-
Step 600
600
#0071D9
oklch(55.6% 0.181 254.6)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D98
oklch(42.6% 0.139 254.8)
-
Step 900
900
#04407E
oklch(37.5% 0.119 254.8)
-
Step 950
950
#07264A
oklch(26.9% 0.076 254.9)
#3291FD 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) | #5A9AFF | 0.041 |
| Deuteranopia (no green cones) | #3288FB | 0.023 |
| Tritanopia (no blue cones) | #00ABBB | 0.137 |
| Achromatopsia (no color) | #909090 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3291FD
#3291FD
oklch(65.7% 0.183 254.6)
- #C28200
#C28200
oklch(65.6% 0.139 74.4)
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 #3291FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.010
- Chefchaouen Blue #4895EF ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.037
- Soft Blue #6488EA ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.049
- Clear Blue #247AFD ΔE 0.061
- Cornflower #6A79F7 ΔE 0.070
- Water Blue #0E87CC ΔE 0.079
Use #3291FD 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.