#3184EA
Closest named color: Dark Sky Blue (#448EE4). oklch(61.6% 0.173 255.8), rgb(49, 132, 234).
Aa
Black text reads best on this color (5.61:1).
About this color
#3184EA is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.173 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.034 away. Black text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.61:1 |
| White text | 3.73:1 |
Values
| HEX | #3184EA |
| RGB | rgb(49, 132, 234) |
| HSL | hsl(213, 81%, 55%) |
| OKLCH | oklch(61.6% 0.173 255.8) |
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 #3184EA | 3.73:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #3184EA | 5.61:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #3184EA text on white | 3.73:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #3184EA text on black | 5.61:1 | AA | Lc -37.2 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9DC3F7
oklch(80.8% 0.085 256.3)
-
Step 400
400
#65A2F3
oklch(70.6% 0.135 256)
-
Step 500
500 (this color)
#3184EA
oklch(61.6% 0.173 255.8)
-
Step 600
600
#0070DE
oklch(55.7% 0.188 255.7)
-
Step 700
700
#005EBC
oklch(49.2% 0.166 255.7)
-
Step 800
800
#004C9B
oklch(42.6% 0.144 255.8)
-
Step 900
900
#0F407C
oklch(37.6% 0.114 256.2)
-
Step 950
950
#0B2648
oklch(26.9% 0.071 255.8)
#3184EA 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) | #4F8DEE | 0.036 |
| Deuteranopia (no green cones) | #297CE8 | 0.023 |
| Tritanopia (no blue cones) | #009CAB | 0.132 |
| Achromatopsia (no color) | #848484 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3184EA
#3184EA
oklch(61.6% 0.173 255.8)
- #B17800
#B17800
oklch(61.6% 0.13 75.7)
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 #3184EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.034
- Dodger Blue #1E90FF ΔE 0.040
- Clear Blue #247AFD ΔE 0.042
- Soft Blue #6488EA ΔE 0.048
- Chefchaouen Blue #4895EF ΔE 0.051
- Water Blue #0E87CC ΔE 0.051
- Cornflower #6A79F7 ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.064
Use #3184EA 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.