#2F83DA
Closest named color: Water Blue (#0E87CC). oklch(60.4% 0.154 252.6), rgb(47, 131, 218).
Aa
Black text reads best on this color (5.37:1).
About this color
#2F83DA is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.154 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.029 away. Black text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #2F83DA |
| RGB | rgb(47, 131, 218) |
| HSL | hsl(211, 70%, 52%) |
| OKLCH | oklch(60.4% 0.154 252.6) |
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 #2F83DA | 3.90:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #2F83DA | 5.37:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #2F83DA text on white | 3.90:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #2F83DA text on black | 5.37:1 | AA | Lc -35.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DCF5
oklch(88.6% 0.042 251.7)
-
Step 300
300
#9EC4F1
oklch(80.9% 0.076 253)
-
Step 400
400
#67A4EA
oklch(70.7% 0.121 252.9)
-
Step 500
500 (this color)
#2F83DA
oklch(60.4% 0.154 252.6)
-
Step 600
600
#0473D1
oklch(55.5% 0.168 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#014F93
oklch(42.7% 0.13 252.7)
-
Step 900
900
#104275
oklch(37.6% 0.101 252.8)
-
Step 950
950
#0C2744
oklch(26.9% 0.063 252.6)
#2F83DA 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) | #5989DD | 0.041 |
| Deuteranopia (no green cones) | #3D7AD8 | 0.024 |
| Tritanopia (no blue cones) | #0098A4 | 0.116 |
| Achromatopsia (no color) | #818181 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F83DA
#2F83DA
oklch(60.4% 0.154 252.6)
- #AF7300
#AF7300
oklch(60.4% 0.129 73.1)
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 #2F83DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.038
- Windows Blue #3778BF ΔE 0.046
- Cool Blue #4984B8 ΔE 0.055
- Soft Blue #6488EA ΔE 0.057
- Steel Blue #4682B4 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.060
Use #2F83DA 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.